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Burning is called fire, roasted is called ash. And what your friend doesn't have, it's called the brain. So hi everyone, because today we're going to study the same brain.
Class 10 Science lesson on Control and Coordination covering brain functions, nervous and endocrine systems, and plant responses.
Key Takeaways
- Control and coordination involve the nervous and endocrine systems working together.
- The brain and spinal cord form the central nervous system controlling body responses.
- Reflex actions are automatic and involve minimal brain involvement, while voluntary actions are consciously controlled.
- Hormones released by endocrine glands regulate various body functions including growth and puberty.
- Plants also exhibit coordination through movements like tropism in response to stimuli.
What the video covers
- Introduction to the brain and its role in control and coordination of the body.
- Explanation of coordination as the process by which all organs work together.
- Detailed discussion on the nervous system including central and peripheral nervous systems.
- Description of cranial and spinal nerves and their functions.
- Role of neurons and neurotransmitters in transmitting electrical impulses.
- Explanation of reflex actions and voluntary actions with examples.
- Overview of the endocrine system and hormonal control in the body.
- Discussion on the brain parts like hypothalamus, cerebellum, and their functions.
- Introduction to plant coordination mechanisms such as tropic and nastic movements.
- Use of examples and tricks to help students remember key concepts and exam questions.
Chapters
- 00:00Introduction to Brain and Control and Coordination
- 05:14Control of Responses and Reflex Actions
- 09:50Cranial and Spinal Nerves Explained
- 14:21Neurons and Transmission of Signals
- 19:26Neurotransmitters and Chemical Messengers
- 29:18Voluntary and Involuntary Actions
- 38:18Brain Structures and Their Functions
- 51:12Endocrine System and Hormonal Control
- 62:12Plant Coordination and Tropic Movements
- 92:11Positive and Negative Tropism in Plants
Full Transcript — Download SRT & Markdown
Speaker A
Which one of your friends might have a little It may be very little. But you have it Is it complete? Because today we are going to study Control and coordination. That is, the one who Your whole body, this brain,
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Which one of your friends might have a little? It may be very little. But you have it. Is it complete? Because today we are going to study control and coordination. That is, the one who controls your whole body, this brain,
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Like brother, especially the one with plants I don't understand what the part is. Tropic Movement, nastic movement. Today I will share tricks I will remind you with the help of. Brother, this is We have a brain, we remember its functions.
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How does it control each other? You go. Why do you get it? Are you going? Walking straight, yes. How are you able to study? Thinking. How can you do it? I know about this chapter. You have a lot of problems inside.
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are going to get trapped inside. All of that here Will be made from. This is from Prashant Bhaiya's mouth It is guaranteed. Ok? Now understand carefully. When You will also have to make your paper hard.
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Like brother, especially the one with plants. I don't understand what the part is. Tropic movement, nastic movement. Today I will share tricks. I will remind you with the help of. Brother, this is we have a brain, we remember its functions.
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They trap you. Because of this, this one shot Look very carefully. Bring a notebook and pen Go brother. There is no mujra going on. Any The dance is not going as you think it is.
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Don't live. I can't remember the parts. I have brought a trick. PK Bhaiya has come. You have come up with a very cool trick. This one shot. All the important questions inside. The question that you asked in your board exam
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Have made it. Let's start. Coordination. What is coordination? One Let me explain with an example. Suppose you have this I thought that brother will go cheating in the exam.
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Are going to get trapped inside. All of that here will be made from. This is from Prashant Bhaiya's mouth. It is guaranteed. Ok? Now understand carefully. When you will also have to make your paper hard.
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Mintu, you are in the bathroom at exactly 9 am. To reach. And Sintu, you do this outside.
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To the teacher or to the board exam teacher, so what do they do in this chapter?
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Adjust various activities of life. i.e All your organs work in one way. Are. And we call that process Coordination. Now this control and Coordination is very important.
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They trap you. Because of this, this one shot. Look very carefully. Bring a notebook and pen. Go brother. There is no mujra going on. Any the dance is not going as you think it is.
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Because your marks were low. so like If you get slapped on the cheek then this neck No, it becomes like this. Isn't it? able to feel yes? I am able to feel it or not. warm When you touch water, how does your hand move back?
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Hey brother, what is this? Ok, come. Go. Come on, look how cute this cat is!
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Tell me the way. And you turned around loudly He slapped him. such unnecessary Or are you not taking the wrong action?
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Have made it. Let's start. Coordination. What is coordination? One. Let me explain with an example. Suppose you have this. I thought that brother will go cheating in the exam.
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And inside the plants, both have to be read. First we start with the animals Inside. Ok? More about plants I will read it. Let's go inside Animal if I If I divide the system then there are two types
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If you did, you would have made a plan amongst yourselves. Look Chintu, you bring the chit.
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Actually, son, you will get marks from this only. Let's come. Isn't it? Something dangerous in life We do it and go. I have so many students See, all these people are introverts.
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Mintu, you are in the bathroom at exactly 9 am to reach. And Sintu, you do this outside.
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Is? So introverts should not take tension. But this So nervous. That's not what this nervous means Is. It is different. and what is the endocrine system Is? The endocrine system is basically our There is a hormonal system, much more than our body
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If you come out, give me such signals. I will also come inside. That means you coordinate kara and cheated among themselves. What like this is? Inside your mind, there is a there is coordination. i.e. working together of various organs of an organism to
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There is a peripheral nervous system which I call PNS. Ok? Now this What is the CNS? two things inside the CNS It is simple. A brain that you friend has less and the other is the spinal behind Cord. very nice. So one brain, one
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Adjust various activities of life. i.e. all your organs work in one way. Are. And we call that process coordination. Now this control and coordination is very important.
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It happens? Look inside our bodies There are nerves. There were a lot of nerves which carry the signal. And We call that entire system peripheral.
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Why? For two jobs. Look first. Correct movement of each specific change. That is, if any change comes, for example, one. I will take the dirtiest example. Your father slapped you. Why did you plant it?
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Nerve you are not cutting. your nerve It is deep inside the body. what you are cutting That's a blood vessel. Wayne Wayne, yes that's you You fools are trying to bite. so very It is inside. So if someone says to you and
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Because your marks were low. So like if you get slapped on the cheek then this neck no, it becomes like this. Isn't it? Able to feel, yes? I am able to feel it or not. Warm. When you touch water, how does your hand move back?
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He has come to do it. Ok? Remember. Now look peripheral nervous system i.e. nerves The entire system. Now here basically There are two types of nerves. There is one There is a cranial nerve and a spinal nerve Nerve. Well, there is another type of your
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Goes. So this response is all this. Who controls the response? Control. Its own system of end coordination. No wrong and unnecessary action. Accept it, accept it. You were going by the road. Someone your he tapped on the shoulder and asked, brother, that
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Look at the diagram. There will be some nerves that It will come out of our brain. Ok? Brain Will come out from What will we tell them?
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Tell me the way. And you turned around loudly. He slapped him. Such unnecessary or are you not taking the wrong action?
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You can see this. These are the branches that look like What is this, right? All of these There are nerves. very nice. Now this chapter This chapter starts, right?
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No. If you are taking it then it is your brother control coordination is poor. Ok? So two important aspects of control and coordination there are things. Now look at the control and coordination in this chapter we will discuss about animals
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Is. Now listen to me carefully. the first of all Term stimulus or stimulus. What is it It happens? Let us take an example. accept it Suppose we will not take the example of father.
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And inside the plants, both have to be read. First we start with the animals inside. Ok? More about plants I will read it. Let's go inside animal if I if I divide the system then there are two types.
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It is very hot. Very hot brother. such that It will burn your hands. Very hot. So I am like this He brought his hand. I walked comfortably like this I was touching his hand with my other hand and I touched his hand like this
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There is a system. There is a nervous system, an endocrine system. This one is not nervous that you stay in class the whole time, yes. Well, remember one thing that no matter how much meaning, all these introverted students
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Due to heat energy. It was hot. This hot Was. That's why I put my hand back.
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Actually, son, you will get marks from this only. Let's come. Isn't it? Something dangerous in life we do it and go. I have so many students. See, all these people are introverts.
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Stimulus is basically any change in the Environment. If anyone in the environment There was a change due to which our body reacted.
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Who doesn't talk much. Their goal in their mind, their target. It clears and this is a very good score. I will come back after doing it. Then there are many things in life. Let's make it bigger. I have seen this. Correct
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So when Papa slapped me, Papa's The slap hurt you. So the father What was that slap for you?
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Is? So introverts should not take tension. But this so nervous. That's not what this nervous means is. It is different. And what is the endocrine system is? The endocrine system is basically our there is a hormonal system, much more than our body.
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Isn't it? Do you know what changes have happened? Correct Is? That is, what is the stimulus? Some changes are coming are inside the environment due to which What is our body? a response It produces. what does it produce
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All the hormones come, we should read them today also. Is. First we study the nervous system. Now look, the nervous system is also of two types. One it is the central nervous system. With love I will call CNS. Central nervous system.
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Of the bottle. Bring the bottle back into the game Brother. The bottle has arrived. This bottle was hot. One thing tell me. How did I know? Was it hot?
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There is a peripheral nervous system which I call PNS. Ok? Now this what is the CNS? Two things inside the CNS. It is simple. A brain that your friend has less and the other is the spinal behind cord. Very nice. So one brain, one
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There is magic in the hands. Oh you foolish hands Some specialized cells or tissues inside There are what we call receptors.
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Spinal cord. Now brain also has three parts. There are. He will also study further. And this which what is this, the peripheral nervous system?
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Son? Receive it. Ok? So cells and groups of cells present in a sense organ that Detect Stimuli. That is, the stimuli which We explore how O stimuli are Where are you? Who are you? Who finds out Is? Receptor. Well, many different types
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It happens? Look inside our bodies. There are nerves. There were a lot of nerves which carry the signal. And we call that entire system peripheral.
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I will show you from here right now. such as the first Type is photo receptor. Isn't it? This is yours Black eyes. That is, with the help of these eyes What you can see in the world. Why?
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Nervous system. Now here's a big I want to tell you something important. These all the heartbroken lovers who say Neha, if you don't talk to me so I will cut my vein. Nerve means nerve.
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You can see it. Detect Light and Help In vis. ok sir. This is also a receptor.
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Nerve you are not cutting. Your nerve it is deep inside the body. What you are cutting that's a blood vessel. Vein vein, yes that's you. You fools are trying to bite. So very it is inside. So if someone says to you and
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Is? So this happens inside your ear. Detect Sound Vibration and Help in Hearing. Ok? Next is the thermoreceptor.
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If your name is Neha then you will get the answer. Have to give. Science doesn't speak to me.
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If it is there, who will tell if it is hot? This will tell Brother. Ok? Next comes All Factory Receptors. I seem to have heard this name somewhere Yes brother. All Factory Acid and Base Chapter I have also read it. If you haven't read it, I
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He has come to do it. Ok? Remember. Now look peripheral nervous system i.e. nerves the entire system. Now here basically there are two types of nerves. There is one there is a cranial nerve and a spinal nerve nerve. Well, there is another type of your
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She goes. Isn't it? So that means all factories What do receptors do? inside the nose Are. Detects smell. Ok?
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It is not in the syllabus. What is cranial nerve it occurs? Which comes from the brain. And spinal is understandable from the name itself which it originates from the spine. Help of an example let me explain. With the help of a diagram. These
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had been. Ok? gustatory receptors that They are used to sense the taste. now one I am telling you the trick, son, keep it between you.
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Look at the diagram. There will be some nerves that it will come out of our brain. Ok? Brain will come out from what will we tell them?
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Will it be needed or not? So I am telling you a trick Yes, son. Tell your mom, mom Actually, my gustatory receptors Nor does the taste of this dal not come out good.
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Cranial nerves. And this spinal cord this removes a lot of nerves. And what do we call them? Spinal nerves.
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The second thing is receptor. Stimuli came. What were the stimuli? Some change came. Change Change. Hot water. Hot water. Heat energy.
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You can see this. These are the branches that look like what is this, right? All of these there are nerves. Very nice. Now this chapter this chapter starts, right?
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I have nerves. Didn't you just tell me Nerves. What will those nerves do? that signal How far will you take it? CNS. CNS What was it? Say central nervous system whose There are two parts inside. one mind and one
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It happens with some important terms. And this which is an important term for children to go to school I don't understand at all. I said your where is the attention? Your science teacher is here.
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Come on brother, take that hand back. Then what will be? CNS means spinal cord and brain The signal will come back from this side. who will take Will you come? She will bring the nerves. Now the signal will come
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Is. Now listen to me carefully. The first of all term stimulus or stimulus. What is it? It happens? Let us take an example. Accept it. Suppose we will not take the example of father.
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That is, what is the response? What is the response? First of all tell me this. The response is the reaction of the organism to a stimulus. Stimulus Whatever reaction I have, that is, I have moved my hand That is my response to push it back. now over here
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I know it hurts. Isn't it? Yes. He will take the example of hot water. One there is a bottle. There is a bottle. Pick up a bottle are. Come on brother. Fetch the bottle game inside. Come brother. There is a bottle. That bottle
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What was the response? The hand went behind. What Did the part get it done? The muscles here are muscles.
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It is very hot. Very hot brother. Such that it will burn your hands. Very hot. So I am like this. He brought his hand. I walked comfortably like this. I was touching his hand with my other hand and I touched his hand like this.
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what the nervous system has said Who is getting it executed, he is getting it done Effector Bhaiya, yes Effector Bhaiya, what should I do?
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Get it done. As soon as I touched my hand, I I will take it back. Yes and no. Yes and no. Yes and no. Ok? Now understand son. It was hot. Hot. Because of whom did I take my hand back?
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Brother is a foolish boy or girl. Isn't it? Stupid boy is his code word. foolish child Or a girl. He didn't turn the hot candle away brother.
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Due to heat energy. It was hot. This hot was. That's why I put my hand back.
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Tell me what is stimulus? what is the receptor Is? What is an effector? What is the response?
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Took. That is, what was the stimulus? Stimulus was its heat energy. Stimulus's son means what happens? Stimulus is nothing.
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will be? The response will be your hand behind your back It will go backward. It will go backward. Now Tell me which receptor is used here will be? Which is present inside the skin of the hand?
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Stimulus is basically any change in the environment. If anyone in the environment there was a change due to which our body reacted.
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Effector who effects. Who is the effector Will it happen here? Hand muscle. Muscle of the hand. Very Great friend. You have become smart. Isn't it? My By staying together you have also become smart.
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If she does, then ev
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receptor effector stimuli because the whole Chapter no is going to run on this. And me I will say again and again that response is effective.
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You don't have to be confused about the effect. Now let's come to neuron. Chapters from here Mainly starting. what is neuron Does it happen brother? Look, a neuron is a cell.
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Neuron is a cell which you have learnt in ninth class. I have read it. Oh yes, I am in ninth class.
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You were not studying, son. Something No. Come, I will teach you. Ok? So See what is a neuron? Neuron R D Basic structural and functional unit of the Nervous system. That means our nerves Who made this inside the body? neuron
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Made by. A neuron is a cell. a cell Whose job is what? Get the signal from here Take it here. Take it from there to there. For An example is Zomatosgi. These are our What about signals? Zomato Swiggy.
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He says, okay you have to go there. come sit You can sit or say Uber.
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Ok? Call Uber. Isn't it? Uber or Rapido, so brother, okay, sit, sit, come on, come on I will drop you there and come back. Then from there he I will bring it. So signals are transferred from here to there
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He takes it away. They are specialized in selling that transmission in the form of Electrical impulse. Isn't it? These what in the form of electrical impulse We do? transmitting the signal There are. I will explain about it now. Now
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Look, this function is very important. Because it is asked again and again about neuron What is function? First, the signal He receives it. Now what are these sensory neurons?
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Is? I will tell you now. Stop, stop. Ok? One will receive the signal. Correct Is? Processes and interrupts doz signals.
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That means when the signal comes, it is also processed. It will do so, it will take you to your brain as well and The response that comes back from the brain It will also bring back the response. Sand
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Response means you should understand its three functions. Went. Ok? Who does this? Our Cute neurons are very important Is. Now the diagram of this, this diagram You see, son, I will show you on the next page.
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Am. This diagram is very important. These Diagrams have been asked repeatedly and nowadays no If you are getting complicated questions The diagram does not come directly. Leveling Pay are asked. I will say that this is part A.
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Is. Tell me what will be the name of this part? So This is how labeling comes into play. So as much as I am talking especially to the boys, brother.
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Practice the diagram. Are? Me You know, girls draw beautiful diagrams. She makes it. But why can't you Are you drawing the diagram brother? Are? anyway You are very good at chatting. Isn't it?
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Did you see how it is done? As Will send it to someone on Instagram. Hi White. Hello hello three or four times Hello hello what happened why are you not replying Are you busy somewhere? Hello hello hello again
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After that, when you get upset, till night, okay If you don't want to talk, it's okay, don't do it that much.
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What is the attitude about? Did you feel bad after 2 hours, hey reply So you work hard at it You are going to work hard in it You are going there, you don't have to work hard, son.
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I have done the deed here. Ok? So this is what The diagram is important. I understood this I have been. Understand it carefully. Very Easy Diagram. I have studied it in ninth class. What is it Is? It is a complete neuron. Now understand that
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These long branches that you see His name should be visible in the starting Need dendrites. What should the name be?
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Dendrite. These are the branches you see Isn't this it? This is this, right? Isn't it? Very Excellent. How will you remember? as if it were a stick Is. A stick. Where does the stick come from? from wood.
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There are many wooden branches. So What are the starting branches? Dendrite. ok sir. So what is Dendroid?
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Will he? The signal came. Which signal comes? Look at the signals inside our body.
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They are in chemical form. Whose Son in form? In chemical form. very nice. to receive chemical signals Does. Who receives it? Dendroid.
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Dandroid Bhaiya says come come come Go and come inside. Come in, come in. So I came inside. Now this entire portion that you Can you see this is what we call a cell?
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Body. Or its other name is cyton. Or Cyton. C Y T O N. Cyton also This is what they are saying. This is the complete The cell body is. What is this? its nucleus Is. You know about the nucleus
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Is. Ok? What does the cell body do? Now he A chemical signal had come. that chemical signal convert it into an electrical signal Gives. Why are you doing this to me?
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So why are we transferring that? Inside chemical to electrical? I will tell Am. Because electrical signals can Travel fast. Hey, I'll travel soon Brother. So the signal will reach faster. Now Think hot touch. After 2 minutes, the brain
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The response came and he took his hands back. if so much If it is slow, the body will get damaged. Because of this What happens from this? This body is our cell It is a body, what does it do? chemical signals
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convert it into an electrical signal Gives. Ok? It got converted here. The long tail you see now, We call this tail eggon. Exxon What does it do? transmits signals It goes at a very fast speed. Ok? Now There is no coating on it. This is what you
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Can you see it? over here You may see a coating. Isn't it? There is a coating that we call What? Dirty cold. Isn't it? There is a coating What do we call it? Dirty cold. These Myelin is a coating of tissue. what is that
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Does it? here to protect It is presented. Now the nerve at last There are endings. Lastly, Obvious See The thing is, the ending will come. Isn't it? nerve Ending. What does the nerve ending do now?
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From here the signal is transferred further. Ok? So here are all these things one by one.
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But I have also written it. You can also see yes. as we start From Dendroid. So what is Dendroid?
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Branch like extension. Branch Like Extension from cell body from cell body Let me show you. from cell body of the neuron that receives information from Receptor. That is, the first one Who will receive the information?
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There is a dendrite. Is it okay brother? We are the first It is first. Dendrite is the first. Correct Is? I will tell you about the cell body.
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Am. Cell body has another name which is We speak of Cytonn. The Part of Neuron Containing nucleus. near the nucleus It happens. It processes incoming information and Passes it towards Eggon. That means what is this Does it? Processes the information. End
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Then it passes on. That means pass it on It gives way to a long tail called Eggon. What does Exxon do? Longest fiber extending from the cell body of the Neuron. That is, there is one longest fiber which
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That it is very long in the end. Ok? Caries Electrical impulse. That means remember this Carries electrical impulses Because what does it have to do so quickly?
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Have to carry it. Is it okay brother? Now its last What happens in? It happens at the end of Nerve endings. Nerve endings too I'll give you Let me show you. and part of the neuron that The neuron has an axon, which
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What is the last part? That's our nerve There are endings. Obviously it is. next thing where the chemicals are released to Transmit. That means now this chemical means Electrical impulses were coming, right?
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Electrical signals were coming. these signals be further converted back into chemicals Will go. Isn't it? as it leaves the neuron Signal gets converted into chemical form Let's go. Ok? So what is this in the last Does it? sends the signal forward and forward
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back inside in the form of signal chemicals They get converted. What is clear? Now look what myelin cold does? dirty Look at the cold also. It Is a Fatty Layer Around The axon of the some neurons. Some?
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A neuron has one layer. what is the work It happens? It acts as an insulating layer And speeds up the transmission. That is, the one who Increases the speed of transmission And there is a layer that acts as insulation.
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She does. Isn't it? Like not leaking signals Go. Isn't it? Yes. Like not leaking signals I may go but I will definitely answer your paper questions today.
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There will be leaks. No one can stop him. Ok? Yes. Is this thing clear? I have understood In? Ok? So one quick one time Look at this diagram. Revise it. I 1 I'm just drinking water for a minute. So remember now
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It is very simple. What is? what is dendrite Will he? Receive signals like sticks Will do. The signals are received first In Dendroid. What are the signals in the cell body?
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happened? The chemical signals that came were electrical Converted inside the signal. Exxon Make the long tail travel ahead and come in last Gone are the nerve endings. what do nerve endings do Is? Now back to Signal Next Let's transfer it. Is it okay brother? Here
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Have we understood everything so far? So we moved ahead. Let's move ahead. Now Here are some terms, some definitions.
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There are things you should know. the first of all Definition Synapse. What is Synapse? See What happens between two neurons?
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There is a gap. Like, accept it, accept it, this is our What's nearby? nerve of a neuron Endings. What is this? nerve of a neuron There are endings. Ok? Now another neuron It is starting from here. and what is this
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Is? of another neuron of another neuron Dendrite. If you look at the second neuron You are getting this is the nerve ending. This is it Dendrite. Isn't it? hey at the end of a neuron and the starting point of the second neuron
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What do we do with this gap that you can see? Do you speak? We call this synapse.
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Synapse. How does the signal travel inside this gap? Do you travel? Say. chemical form I travel in. Remember in the synapse The signal that travels is chemical Is traveling inside the form. Correct Is? So let's see this. Gap Between the
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Nerve ending of one neuron and dendrite Off the next neuron. what do we say to him Have you been? We are telling him Synapse. Inside it in the form of chemicals The signal is traveling. Let's have another one
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There is a term which we call nerve impulse. And a lot of kids feel nervous.
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What is Impulse? It will be very difficult, very hard will be. The dumbest nerve impulse is nothing Is. This transfer that I told you about now how? The signal came in the form of a chemical In. Go inside and convert to electrical
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Done. Go back out and be in the chemical Went. And when the second neuron takes it back, Will convert it into electrical. So what This is what we call convergence of signals.
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These are nerve impulses. i.e. signals travel like is doing, traveling like a signal That is what we call nerve impulse, brother. Correct Is? What is a nerve impulse? nerve impulse is A electrical end here write end Chemical signals. Electrical and Chemical
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Signal that travels along the neuron. Like it will keep traveling through the neuron. What do we call that signal? nerve Impulse is speaking. It is generated When a stimulus is detected. When generated It happens? It is obvious. Hey Signal
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When will you transfer? When will it be transmitted Signal? When something happens outside. Isn't it? When Only when Papa slaps me, the signal is generated.
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Will be. Yes. very nice. Ok? How Are there transfers? Dendroid. dendrite from cell body, from cell body to axon, axon to Exxon Terminal. Then comes Signup.
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What is sinus? Gap, gap in the middle. and then Here comes the next neuron. This is how this bicycle It goes on, it goes on, it goes on It goes on, it keeps increasing. very nice.
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Let's go sir. Well, what's on your mind now? You must have understood the whole thing.
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Must have gone. There is a whole table. read this once Do it. How does a neuron work?
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I have already said it 10 times brother. tired I have gone after talking. Now the important thing Isn't that what it is? is your mind A question came to my mind that friend, there are signals, right?
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How does it travel between two neurons? Are you? The gap is sign apps. Sign in apps How are signals able to travel?
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Because there is nothing in these gaps Chemicals. And what do we say to them?
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Neurotransmitters. What do you say? Neurotransmitters. Neurot Transmuters What are they? give and take chemical Messengers.
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That is, suppose there is a gap between two neurons. Now how will the signal reach there? So this neuro There are transmitters. These signals are converted into chemical signals.
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In the form, we pick up from here and go up to here They take it away. Ok? So what is this?
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Neurotransmitters are the chemical messengers Release from the axon terminal of the neuron. That means this chemical from the end of every neuron are released. And what are those chemicals?
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We do? to the next neuron's data drive Take it away. Ok? very nice. Give Help in transmitting the nerve impulse.
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used to transmit nerve impulses Are. At sign apes electrical impulse is Converted into chemical signals. I told Electrical back in the gap in between gets converted into chemicals and that These transmitters carry the chemical itself.
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Are. very nice. Well, there's another term. Brother, how many terms are there, I am worried.
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Stop it brother. See the name of the term Neuromuscular junction. what is Neuromuscular junction? We also call it NMJ.
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Let's say. NMJ is the short form. What is the neuromuscular junction? This is such a It is a thing, you will understand it very easily. See There was a neuron, there was a neuron, there was a neuron, neuron, neuron that sends signals
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He took me to the muscle of my arm and that muscle Move your hand back, move it back. So the one who It was the last neuron that transmitted the signal.
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Took me till there. that neuron's nerve There are endings, right? Nerve endings last. The part is attached to the muscle and We call that point NMJ.
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neuromuscular junction, where Neurons and muscles are connected. Ok? Look, this is the very last part.
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It happens. There will be a neuron here whose Nerve endings will be connected to my muscles Because of which I am able to move my hands back.
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So what do we call that? Neuromuscular junction. very nice. Look at the definition. The Point Were Nerve Ending meets the muscle so that the nerves Messages can make the muscle contract. i.e a point such a point because of which
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Our muscle is able to contract at the point where neuron and muscle interact are connected. What will we say to him?
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NMj means neuro muscular junction. Very Great brother. Did you understand? Let me now give you I will ask some questions. But before that type Off neurons read it. Now not one of its There is a trick. Children are very confused.
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How many types of neurons are there? Three types. Understand it with a trick. What is the trick SIM?
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Sim. You insert a SIM card into your mobile phone. Are? It is only with his help that you are able to talk. Tax You can do it or not. Okay brother. same You are looking at it with help. Tell me brother, come to our house
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There is Wi-Fi. Sim Sim First S That is, sensory neuron. Inter in the middle neuron and lastly motor motor neuron.
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Now let me explain. With the help of an example Let me explain. Look, let's say, let's say here Something happened. I touched something hot from the receptor that transmits the neuron signal to the CNS Will take you till. Look, son, this will happen.
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CNS. Now this is the receptor. What is this? Receptor. The receptor receives the signal Get it done. Now from here the signal will go to the CNS.
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That is, up to the spinal cord and brain. then to him The neuron that will take it first It will be called S. S means sensory neuron. Correct Is? Now that neuron which is in the last Last is from CNS back to CNS.
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The signal from the CNS will travel to my hand. And my hand will go back. So the one who The signal is taken back. Isn't it? Muscle What will we say to him then? to that neuron We will say the last one, that is, M, which means motor.
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Neuron. Now only one is left. I am the one who Creates connections in between. which both of these between sensory and motor neurons Creates a relationship. what is a relationship called Is? Same thing. Ok? So help Sim Remember it from here. receptor receptor what
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Will he? Receive the receptor signal. S That is, sensory neuron. took the signal, He took me to CNS. between Interneuron connection. Then M i.e.
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Where does the motor neuron send the signal back? Will you take it? This will take you to the effector.
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Up to the effector. What is an effector? right now Told that muscle which is the reason behind these hands Are you able to move from it? Because of the effector muscle.
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Ok? Isn't it? i.e. motor neuron signals will bring it to the effector muscle. Now This The difference must be clear that sensory neurons What is? carry messages from sense organs to To the brain and spinal cord i.e. CNS
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Which will carry the signal. What is a motor neuron? Is? which carries signals from the CNS to the effector muscles He will take it away. carry messages from the brain and Spinal cord to the muscles and glands. Correct
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Yes brother. One middle brother remained inter. Well, it has another name, son. Don't be confused. It is also called relay.
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Relay. What happens in a relay race? to one Caught the other one, right? holding the stick Don't run here and there in relay races. same work It is his. What does it do? Connect Sensory and motor neuron. This is its only job.
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Simple diagram is not available. Out of it You don't need to read the diagram.
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Now friends, let's ask some questions. Let your mind be checked. how much do you I understood. First identify the site where an electrical impulse is conveyed into chemical signals. Answer it quickly Tell me. What is? This is very simple.
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A site where electrical What is impulse back? chemical The signal is converted inside. So what There is a synapse area, isn't it, son?
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If you remember, there's a nerve ending in front of it. The area is the gap between the synapses.
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It gets converted back into chemicals. Is. Ok? See how many times this question is asked.
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has been asked. Which part of the neuron Receives information from axon of the Another neuron. i.e. new from another neuron The signal has to go to the neuron. So the signal Who will receive it? Same brother signal He receives it. Rod dendrite. Very
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Excellent. Ok? Let's move ahead. What is synapse? very basic question Is. What is a synapse? Gap between.
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Now remember the exact definition because Nowadays, even a little bit of wrongness is visible in the papers.
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If yes, then we deduct the number. Some teacher What should I do now brother?
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If you cut it, let's cut it. one of our teachers He was also like that. And I had a friend Chintu Lal. Math is the story of Math. Isn't it?
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This math is a useless subject. Look at the fun In studying biology. Maths is good, right?
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So look, that was Chintu Lal. him absolutely I did not like maths. at all. Once Our boss comes and sets him up.
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And they say prove this is a square. draw a figure and call it Prove that this is square. Now he goes Is. And he speaks. But Sir, this is Annie.
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Square. This is a circle. Sir says What? Sir, look, this is a circle. Have you gone mad? Square is the Is. Sir, it has been proved sir. It is square.
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You said who is greater than you? That is a different matter. After that, he was taken out of the class was thrown out. Beat him a lot. Correct Is. Ok. Well, it happens like this too, teacher.
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But therefore remember the definition. What is Synapse? Does it happen son? I told you. what is The function of the nervous system? nervous system What is the main function of? of the nervous system The job is to receive the signal. Up to the CNS
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Take it away. Response back from the CNS Take it forward. Isn't it? That means one will take It will bring you to the brain and back from the brain also.
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So what is this all about? nervous system It is called. Right the function of the following Parts of the Neuron. asking first What is the function of dendrites? Address Do you have it? He receives it. what is exon
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Does it? has a long tail that endings are nerve endings that What do you do in Bahar Bahar Sign Apps?
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Sends the signal. And there is one Myelin sheet. What does the myelin sheet do?
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protective covering that Fast transmission of signals It comes. Let's see, I ask such a question.
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Had been. What comes? to label It comes to know which is the A B C D part?
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As you can see part A. This looks This is dendrite on your board. These Do you see dendrites? Ok? This is in the middle What is? What is cell body cyton?
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Eggon. What is this? What is D? nerve Endings. very nice. Let's move ahead. Differentiate between sensory motor and relay Neuron. I told that relay is the inter.
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Yes. So, friend, write the point between these. Brother, what kind of work do they do? one take one connecting in the middle and one It takes it back to the effector muscle. Correct Is? Why are neurons called structural?
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and functional unit of the nervous system? Why do you say that, son? Very simple reason Because this neuron is related to this.
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With the help of our whole body response She is able to do it. Ok? So remember because It is the basic sale that receives Processes and transmits information Through electrical and chemical signals. i.e It is the only cell that helps us to
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Can send body signals. receive We are able to do it, we are able to transmit it. This Because of this, what do we call it?
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Fundamentals. very nice. This question Is. It's a bit tough. Why Can't Electrical Signal Directly Reach Every Cell of the Body? Look like this because my nervous system There is a need for . This could also be the case
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that the signal came and in every single cell Reached directly. Because our body The nervous system is present only in a few places.
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What does the nervous system do? to the signal Transmits. throughout our body There is no nervous system. Isn't it? fewer nerves There are fewer neurons in our body.
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Inside. Therefore, a specialized system allows us to It seems like the whole thing that we call Nervous system. So remember electrical signal travels through nervous tissue and Not by all body because they cannot reach Every sale directly. That means every single cell
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It is not possible to go directly to of signals. Isn't it? Don't go to every single cell Could signal. With whose help does he go? nervous system and the nervous system helps in every part of the body It is not in one part. in each part
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Not there. Remember this. Ok? Now let's come to the next topic which is type of actions. That is, how many types of actions Are? There are three types of actions you can take.
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One is voluntary action which you take after thinking carefully. Do you. for example son for example For example, study. Brother, study Leave voluntarily. He can't be anything It has been with us. I am not able to study Are. Our studies are not a voluntary action.
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We are not able to study. i.e. ventri action Those are the ones you can control.
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Is using a mobile phone a ventriloquy action? Brother We cannot control it. by himself I start scrolling. Yes, but he Actually it is voluntary. Ok? So What is ventri action? these actions can be Controlled by your own will. you by yourself
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You can control it. Ok? involuntary What are actions that you cannot control? Can do it. What is an example of this?
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Heart beat. Tell me if my heart stops, my heart will stop. Come on, say it once. Prashant Bhaiya, you will say everything.
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I wish my heart would stop. See how quickly spoke. Your teacher's heart stops when you see him If you go then don't say anything. But there's nothing to say It will happen because involuntary action does not stop Can. Ok? There comes a reflex action.
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You should also look at the reflex action. Cannot control directly. But it Is different from involuntary. Why?
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Because this is a rapid. Rapid. Rapid means fast. Let me explain how? whenever What if you touch something hot, friend?
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Happened? You suddenly removed your hand. They There was no ventilation action either. Isn't it? you have I didn't even think about it that long, even your mind Could not process. But you also touched the hand Took it back. So such rapid actions
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We call fast actions reflexes. Action. Ok? Now watch the reflex action and the difference between involuntary action It is very important. Now I will tell you the difference What am I? Look at the first thing, thinking So it is not involved in this also and
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Thinking is not involved in this either. But do you know what the most dangerous thing is?
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about reflex action that here The brain is not directly involved. Do you know who is involved here?
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Spinal cord. Yes. in reflex action The spinal cord is involved. Brain Not directly involved. Whereas In involuntary, the brain is involved.
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Your brain is controlling your heart Heartbeat. I will read it now also. Ok? Its I have told you the examples. Isn't it?
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What is? Pumping of blood, peristaltic Movement, peristaltic movement. Ok? Contraction and relaxation of blood Vessels. Very good voluntary action It is simple that our brain is involved.
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Yes, thinking is also involved. We think You can do it only after understanding. Is it okay brother? Very Excellent. Did you understand this? Now reflex action We are going to study. a great importance It's a thing. Assertion reasoning is being asked a lot these days.
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Has been. So brother, look at this question. Assertion What is? Desegregation is a voluntary action.
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It was already wrong. Food inside the body It is being digested. do not control Can. So digestion is an involuntary action.
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So this is what fell. Then the answer will come D. Assertion Reasoning Question Practice Do it. There will be toughness inside the paper. d how Will you come? Because the assertion is wrong. The region is correct.
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Read the region. Reese is right. Ok? Let's go brother Things have become clear till here. Now let's move on Towards reflex action. Reflex action What is? Sudden movement. Fast movement.
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as I told you. a reflex Action is a sudden, automatic, and involuntary Response. Not an involuntary action. But here But the brain is not directly involved.
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Thinking is not directly involved. Ok? So what do we say? This one Type of fast and sudden action. Correct Is? Well, remember that those who are involuntary There are actions, but they are not that fast.
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Would have been. This is our reflex action. So it is very fast. While involuntary action They are not that fast. Ok? Its What is an example? like hot water I got it touched and then took my hand back. the biggest
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This is its example. Ok? So now I Let me tell you. Here are some terms that that you should know whose name is Reflex arc. What is a reflex arc?
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I drink water for 1 minute. Look Reflex You can learn Arch in a very easy way yes. The reflex arc is the path. reflex The entire path of the section is reflex It is called an arc. With the help of a diagram
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Let me explain. And look at this diagram You are here, this is important brother. Why?
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Because it was asked repeatedly in the paper Is. What is happening in this diagram? See This is Chintu Lal's hand. It has hot water I touched it. So what is happening now?
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Son? Understand. As soon as he turned on the hot water What will be the first receptors to touch?
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Receptors. Which receptors? Thermoreceptors will receive the signal. Now tell me who carries the signal to the CNS?
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Will you take it? What carries the signal to the CNS? Will you go? Say SIM means sensory neuron.
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very nice. Sensory neuron. now over here The signal does not reach the brain. It only goes to the spinal cord.
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Is. Now in the middle is the interneuron. These what you can see in the middle relay or Interneuron. Ok? Now back to the signal Who will bring it to the muscle? You know that is the motor neuron. So motor neuron
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will bring the signal here and what you Will you do it? You will pull your hand back like this.
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It is very simple. Ok? Now here brother There is no use of the brain. These are of no use.
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But is there any involvement of the brain? Not there? No. There is a little bit of involvement.
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As it is written here, message to The Brain. Understanding variants. In your childhood, your When mom is making rotis, you sit next to her.
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I must have sat here sometime or the other. And that pan There is a pan, sorry, that pan which is there.
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You must have had a hand in that among the children. And after that you never touched that hot pan.
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You must not have touched it, note why ever Because when you do any reflex action If you perform then your brain I am not directly involved but your A message goes to the brain that this thing It is dangerous. Sometimes your feet touch the bike's silencer
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I felt it in my childhood, once it happened, after that You know, your mind knows It's gone, oh no, it hurts Now you can never step on the silencer of the bike.
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You will not be able to feel it, you understand, that is, reflex. The brain is not directly involved in the action.
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Yes, but indirectly in decision making No, but the signal goes to the brain What happened, after all, it reaches the brain.
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Okay, if it was something hot then it would have reached the brain. Okay, so this path, son, is yours.
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Can you see the path? Receptor sense sensory neuron, interneuron, relay neuron and Effector muscle. This is the path, this is the path we follow The whole thing is called reflex.
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Arc. Arc means path. Ok? throughout this What do we call path? the whole Reflex arc. From Pathway of the Reflex Action. Ok? I have shown you its parts I told you. A stimulus came. Sensory Neuron, spinal cord, motor neuron and
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Effector muscle. ok sir? very nice. Now Here the question arises as to what is reflex?
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Why is there so much need for action, friend? See Reflex action is multifaceted because if If there is no reflex action then you will become fast.
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You will not be able to take action. Isn't it? So its Let's read some things quickly. what-what Is? First, provide immediate end Automatic response. One is fast and An automatic response will come. next Protects the body from injury. i.e
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If something is hot and you take a little If you keep touching it for too long, you might get burned.
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Brother. But because it is a reflex action. Hand You will remove it quickly and there will be no use of your brain.
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Not even there. Ok? Next Saves Time By Avoiding delay. It is also saving time.
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It is happening quickly. move your hand away You took it. Helps in survival and Safety. That means survival and safety too.
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Reflex action is very useful. So this Who had some important points? of reflex action. Let's ask some questions Let's see. How is the reflex arc formed?
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Evolved in Animal? Look, this is a tough question. Is. There was no 'na' inside animals earlier.
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Reflex arc. It evolved later Over time. Why? Because as As time progresses, our body The need for Reflex R started arising. Because If anything is happening to the body suddenly Also, the action should be fast. Because take the signal to the brain brain answer
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Will give. So there is not much in that whole process. It took time. So if something happens suddenly What goes into protecting the body?
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Happened? This reflex system is complete Our body made it automatically. Ok? So reflex arcs have evolved in the Animal to Provide Rapid and Automatic Response to The Harmful and Sudden Stimuli. That means anything is harmful.
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Then the response comes suddenly. What happens because of this? We are very good at We can live life with it. Isn't it? our life The span is correct. Isn't it? Suddenly we Can avoid things. from harmful effects We are able to survive. Ok? very nice. Now
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There are some pointers that are important Why is it? So I will give you those four pointers.
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I have already told you that reflex action or Why is reflex important? Let go very nice. Next Question Explain Reflex action with the help of labor Diagram. Mention the role of neurons. See I had said that diagrams are asked.
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How many times has it been asked? This one which There is a diagram, son, some NCERT diagram.
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It's a dirty diagram butt to make. Practice It is important to do it. Now look here It has also been asked which neurons Are they used? Sim, sensory, inter and motor Neuron. very nice. Let's ask another question Is. Which of the following action is an
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Example of reflex action? Of these Which one is it brother? Taking Notes Brother, we don't take that anyway.
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So it is not at all. Which one is it? pulling Hands away from the hot object. Let go Reflex actions are controlled by Spinal cord. Very nice sir. Moving forward Are. Which of the following is correct?
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Represents the path of reflex arc? What is the path of the reflex arc, son?
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Of these? Tell me this quickly. which path Is? If you receive first, then the receptor It will be useful. Ok? Then comes the sensory Neuron. sim sensory neuron spinal The signal goes to the cord, not to the brain.
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goes to the spinal cord through motor neurons and The effector is great. So C option is yours Correct answer. Let's ask one last question Let's see. Ravi accidentally touches a hot pen. Bhaiya, she touched it hot. while Cooking and immediately pulls the hand away.
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Ok? This Rapid Response Saves Him From the Severe One. Brother saved from burning His hand. what is the correct sequence of The event? That means tell the correct sequence. To all First look at what is stimulus? Stimulus is
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Heat. Heat. What are the receptors? Thermoreceptors. sensory neuron, spinal cord, motor neuron. Who is the influencer?
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The effector is the hand muscle. Hand Muscle Pay Signal The hand went back. Ok? So this is the whole It is also written here. very nice. Next It is the same question. define the reflex Action using flow chart and all. all this
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you can. Explain Why Reflex arcs are considered more efficient For quick response. That's what I told you that it is indirectly asked whether Is it a reflex action? So even if The question is why Reflex R Is it necessary? So you will get three or four people from the same place.
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You have memorized the points, write them down for yourself. are to come. Ok? What happens with this?
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Processing time is saved. Isn't it? Quick You can take action. very nice. Let's go now Let's talk. Talking to the mind of. Isn't it? Because you read with your mind.
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had been. Now with the help of that same brain, son, this We will ask you to tell us what you read.
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After all, tell me what did you read? Ok? Yes. Like when boys go to get their hair cut.
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So they feel like their brain is I am telling him that he looks smart.
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Is. It looks absolutely great. But just like When he comes home, he washes his hair.
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What do you think you have done brother? Tai's It was looking good at the shop. What is to be done now Went? And by the way, boys, you must remember that This relationship and hair for you Both cuttings are the same because both places
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But you have to be cut. Ok? yes come Go see Brain. Brain What is most important about the brain?
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Coordination center of the body. That means right here Mainly full body control by signaling from here it occurs. Both Ventri Involuntary Action This is what controls it. Now to the brain What is it son? There are three parts. Brain's
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There are three parts. protection of the brain We will read about it further. Just look at Brain's There are three parts. the first to come The part which we call the forebrain. What Do you speak? Fore brain. a middle part
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It is the mid brain. And there is one last Hind. Hind means behind. Hind means behind.
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Ok? So you can see this brain. These What you can see is the entire What is this part, son? Fore brain. These Small mid-brain. And what you can see below What are you seeing, what are you seeing?
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Is? Hyde Brain. Ok? One by one these Let us read all three parts in detail.
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First there is a term, there is a part This is what we call the corpus callosum.
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Corpus callosum. Now you will say what is this? Look, there are two brains. Left brain, right Brain. that keeps these two attached No, what do we call him? Corpus Cosm.
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Ok? The Corpus Coesum is the thick band of the Nerve Fibers in the Brain. It Connects the Left and right hemisphere. what is its work Is? Connecting the Left and Right Hemispheres to do. and communication between To get transferred. Here here here here here.
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Ok? Its main function is to allow Communication. Get both of them to communicate. Let's move on. Now comes the important four Brain. Look, the subcenter is the hidden brain.
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There are 90% chances that the question will be asked. Hyde will come from the brain. But still, four brains Let me tell you. Son of Four Brains There are three parts. Ok? First part cerebrum. What did I say? cerebrum.
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The cerebrum is the largest part. Its job is Thinking, Learning, Memory. as much as you Whatever you are able to remember, son, it is because of this.
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Because of this you are able to remember. This is it The cerebrum, which helps you remember yes. That means this cerebrum is everything.
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Some. This is your thinking, memory, Intelligence, learning, emotions are all voluntary This controls the actions. as many as The emotions that come inside your body This is also what controls it. Isn't it? So these Is he controlling everything?
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cerebrum. Remember. Ok? Now let's come There are two more parts to this. Well, one is the thalamus.
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And one is the hypothalamus. Ok? Now this thalamus, son, this This is not in your syllabus but I will I will tell you that too. What is its function?
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This is a station. When the station signal arrives Neither do you go directly to the big person.
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Can. There is a human being in the middle who It takes the signal from here to here. Is No? So this is how it works. Who?
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Thalamus. What does the thalamus do? to the signal It receives the signal that comes and this signal is carried to the cerebrum. Ok? So What does it do? Directing Sensory Signal to the cerebrum. Take it to Serebrian goes. Now comes the important
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Hypothalamus. Watch how the hypothalamus remembers Will you do it? Hypothalamus means thermos. your homes I must be using a thermos etc.
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Thermos. Thermos means food kept warm inside It stays on, the water stays warm. Ok? Now The same work of the hypothalamus. i.e. hypothalamus What are you doing? Hunger. what makes us hungry Which seems very fast to me right now.
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Who is controlling him? Hypothalamus. Isn't it? I feel thirsty, I feel thirsty Who is controlling it?
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Hypothalamus means thermos. Remember it like this. Ok? Regulates hunger, thirst, sleep, Body temperature. Who does all these things Does he control? very nice.
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Hypothalamus. What is it, is it clear? Main This is the work of the hypothalamus. hypothalamus, Thermos. What is the thermos doing? to my hunger He is controlling. control thirst Used to be. Very true. Just remember this much. Correct
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Is? So I have talked about this four brain. I told you. Mid brain does not work much Is. The main function of the mid brain is the forebrain and Keeping the hide brain connected. between All the brothers are doing the same thing. Ok? There
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But interneuron here in the mid brain. Ok? So what does it do? This would be the middle part which is between the forebrain and the hindbrain It is located in. The most important work That's what it's all about, connecting. Butt Apart
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There are two-three more small tasks. such as this also controls certain involuntary actions Is. Such as controlling some involuntary action Regulates reflex movement of the eye, Head and Neck. Isn't it? So some movements This would have been useful to control the
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Is. Ok? Helps in the processing of Sensory Ination and Keeping the Body Alert. Isn't it? Who will keep his body alert?
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Does he control? The mid brain works. But your NCERT only has this much Connects each other. Ok? my in A single line from NCERT after the notes No reading required. I straight I speak. I speak straight. Everything is there
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Inside it brother. Ok? Yes. Watch Hyde Brain came subcent. hide brain is the Lower part and located at the back. Here But it happens here son. Ok? Some?
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People may also be empty. not empty Not there. Ok? Now look at Variant. Its There are three parts. How will you remember? from here The question will come. I am telling you MCQ today. Memory Do PCM. Like we say, 11th
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What will you get if I go there? We will take PCM. Same in Physics Chemistry as PCM That is, P means what comes first, most First comes PP, i.e., Ponce spelling.
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Listen carefully son, PONS PONS okay So here it is, Pons, I will remind you.
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Right now C means cerebellum or bellum bellum is fine And M means medulla is another name for medulla medulla oblongata okay this also They say medulla oblongata, okay?
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No problem, it's great to see it now Son, what does this cerebellum do? That was Cerebrum. Bairam Bairam Bairam Memory It was being used for etc. from Bellum Bellum There is a similar word, son, which you Have to remember. I am telling you the trick. balance
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Balance bellum balance. Bellum Balance Yes To What does the cerebellum do? of our body Controls posture and balance.
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i.e. control balance posture and Coordination of the body movement. I walk I am getting it. I am able to stand. This way I am able to do it. Such is Shahrukh Khan's style I am killing. Why? because I have
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There is the cerebellum. Next comes Ponds. Ponds How will you remember? Look what the girls do Are? Some boys might also do it. One The cream was available from Ponds. Pond's Cream She used to come. So what do you do before going to sleep at night?
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Were? I used to take Pond's cream and apply it like this and would fall asleep. Ok? Ponds, that is Ponds. Remember it like this. Now when will Ponds cream Are you applying it? Before sleeping at night. What Are you doing it? When you go to sleep at night
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Be at ease then. So what is its main function? No son? Understand. Firstly, it affects the breathing rate Controls how much you can breathe And sleep also means it has another function Sleep cycle. Sleep cycle also He must be controlling it. Do you understand this?
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I? That means the sleep cycle is over or Breathing is done. That means it is involuntary Controlling the actions. This too Involuntary, this is also involuntary. Is this the thing Did you understand? Ponds at night. at night You are doing breathing and breathing comfortably and
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What are you doing? Sleep Cycle gives you Have to maintain it. Ok? very nice.
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Last comes the medulla. How the medulla remembers Will you do it? A similar word to medulla is Medicine. Medicine. Now the medulla is all that controls things that cause You may have to take medicine. Such as Isn't it a heartbeat? So what does that mean?
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All the involuntary actions that are There are large involuntary actions, such as Heart beat. Ok? Apart from that, from Cut off the breathing. other than that other than that This also controls breathing, son.
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This also works. Blood pressure. Sir You may need to take medication for blood pressure.
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Is. Vomiting repeatedly The question has been asked that one Ramu Shyamu There was an uncle, he went to a mountain. he vomits Went. Tell me which part of the brain is responsible for this Came from? So remember Medulum Medicine.
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When do you take the medicine? when something went wrong It is with the body. That means vomit vomit. Correct Is? Isn't it? It is salivation, right? Salivation.
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Saliva. Ok? very nice. So all these Who is doing the work? Medicine-taking tasks doing. Medulla oblongata. Now, the medulla Another important thing is that this extension It connects to your spinal cord.
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That means remember this is extended son. This extends. Who? medulla extends from the spinal cord It gets connected. MCQs can be asked on this also.
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Already happened. So these were some questions. Meaning it was an important theory. the question is I will get it done now. Now a question which is 99% There are chances of your paper coming in.
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And what is that? Protection of brain and Spinal cord. The question will come: how nervous are you?
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Are organs protected? How to protect Are they done? So remember Brain and Spinal cord in three steps are protected because the brain It is important. First look at your skull skull we call it Cranium. What do you say? Cranium. So
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First of all, this is your brain. What does the bony skull help with? It is protected. whose name is Cranium. What do you call this, son?
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Cranium. We are saying this. Correct Is? It is important to remember the name. next thing It is covered by three membranes. Three There is a membrane in between, brother, which we don't care about.
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Do you speak? Menzies. What do you say? Meninges or meniscus. can say anything yes. Meninges or menisci. These are three layers.
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Now there is fluid in between these three layers also. Is. Fluid. fluid, something like water There is substance. His name is Cerebrospinal fluid. That is, CSF.
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What do CSF soldiers do? Are? Provide protection. Likewise this too What will he do? Will protect the brain.
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What will cerebrospinal fluid do? If Suppose you get a shock to your brain, then in the middle If it is a fluid of layers then what is this fluid Will he? It will absorb the shock. to shock Will pull it. Ok? So remember this. seconds
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What was it? There are three membranes and the third point There is a fluid called cereberospinal Fluid. such as CSF which act as a shock observer and Protect it from injury. Remember These Three points. These are very very very
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Variant. Now comes the spinal cord. Brain's Repeat One Quick Time From. The cranium is a three-layered structure between the meninges.
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in CSF. CSF personnel are standing. If any shock wave comes then we will see it.
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Will take. Ok? Now comes the spinal cord. What is the spinal cord? Spinal cord.
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You must not have seen this before There are bones. There are pairs. Is No? Count and tell me how many pairs you have in the comments.
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They are yours. Tell me the pair once. Ok? Now this is what happens inside it.
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Spinal cord. This is the backbone. Inside this is the spinal cord. And These columns of bones that you see We call this the vertebral column. So The first protection is the vertebral column It is obtained with the help of. Ok? it is also
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Covered by Meninges. Inside this too There are meninges, there are layers. and those There is also CSF between the layers.
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Is. That is, cerebral spinal fluid. So That means both the steps are same. One is different. There On the cranium. What is there here? here There is a vertebral column. There is a vertebral column.
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There is a spinal cord. Ok? Just a difference Rest of the two are same so protection if asked Can the spinal cord of the brain go easily?
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You will bring it, right? Tell PK Bhaiya. We are students, were you scaring us?
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I am PK Bhaiya's student, come on brother. Let's see the question, which part of the Brain Maintenance The Posture Which of the brain The part is son which maintains the posture The cerebellum balances balance Balam, now remember not to do cerebrum
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cerebrum memory emotions you will say brother We don't even feel emotions, well one I was reading something a few days ago and I came to know that the young generation of today As if you have entered into them as a term
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This is what we call emotional anesthesia. That means he did something in his childhood I have seen so many big things now, right?
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There are no emotions in them. Now anything would happen Is there someone like that in his life?
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It doesn't matter. Isn't it? Festivals are coming Yes, the festival is going on, but I am not happy.
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Yes, are you not feeling sad? his life It is going on straight away that nowadays a lot Something big is going on among the youngsters.
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Friend, it can happen to you too, emotionally. Anesthesia. Ok? So this thing called the cerebellum Went. Vi part of the brain controls Venturi action. Voluntary action is the same brother Is. Pahalapala Fore Brain. Who is in the four brains?
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Sa part? The biggest part. Cerebrum. Let's take a case study. Such case based Questions come. What did you say? a 10 year old boy who rides his bicycle Wants. Initially he struggles to Maintain balance? Unable to maintain balance,
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It is falling. So tell me which part of The brain helps in maintaining balance?
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Bellam means balance. very nice. I will remember you brother. next which type of the Action is involved in learning to ride Twenty-two. If I want to learn to ride a bike. If If I drive then there will be an impulse in my mind.
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Needed That means it is a voluntary action. What Is? Voluntary action son. Ok? Cerebellum is the part of vi major division of the Brain? terebellum hind brain which Brain? Hind Brain. very nice. is this Did you understand everything? next question. Which
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part of the brain is responsible for Intelligence? that is very much in you More. What? Speak Seri. Speak Bairam. Bellum No, Bairam. Ok? memorizing the spelling Go. You write it wrong. bicycle if you If you want to ride, you need to balance.
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Then the cerebellum. But if you want to learn Riding a bike should be your answer What's here? cerebrum. Yes. Ok.
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Vomiting medicine medulla yes vomiting Controlling hunger, hunger brother, that was it, wasn't it? My thermos hypothalamus yes very good.
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How is the brain and spinal cord Protected? I just told you this The question is asked again and again. Brain and How is the spinal cord protected?
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goes? next question. What will happen if the Is the cerebellum damaged? if your cerebellum It got damaged. What will happen now brother?
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The function of the cerebellum is to maintain body posture. to do. Isn't it? Maintaining balance. if these If damaged, your body will not be able to balance.
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Will get it. Ok? What will happen? Person Will Lose Balance and Posture. Ventri action will lose Precision. That means if you do anything you have to walk You will try, try to lift something If you do, your mind will spin like this. Such as
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You heard that one line of Mr. Honey Paaji's. Was. My daily work is to sell four bottles of water. So After drinking four bottles of Word, You will start feeling like it happens. If If your cerebellum is damaged. Let go
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What is the whole thing here that can make us nervous? The system was over and now we are going to study is the endocrine system, that is, now we will study Glands. So let's start now To the glands. So not yet our human
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The nervous system is completely destroyed Is. Are we studying now? Glands. Now What are these glands? Look at the glands There are two types of our body Inside. I will explain one by one. and this The difference is also important.
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The first question that comes to your mind is Brother, what are these glands? tell me this Two. Look, glands, by the way, we life I have also read about the process. But I again I am telling you that they are specialized organs
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That is, these are some special organs whose Some work or the other gets done. Isn't it? some of whom What is specific? Substance Ye Are releasing. Isn't it? Some?
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What do specific substances do? Let's release. We call them Glands. Ok? Now look at two types of There are glands inside our body. One is an exocrine gland and is a Endocrine gland. In our syllabus we Endocrine glands have to be studied. But
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of exocrine and endocrine glands The difference is that sometimes it is asked. Is. Now you will ask Bhaiya Endo Eggo Kya Is? So look, endo means inside, exo means Outside. There is a simple difference. This which You can see the exocrine gland, right?
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Let me give you an example of this. you understand You will go. I read about saliva in the previous chapter.
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Where was saliva produced? In the salivary gland. Remember? Yes. know in salivary gland What happens? Saliva gets stored.
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Ok? And then when saliva is needed What happens if it falls? saliva comes down goes. And what did saliva have?
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Saliva had enzymes. Ok? What are the anogrine glands? Release their secretion through duct. That means their There is a storage option nearby. where he is Store it and then what do you do?
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Let's throw it out. Ok? Joe Salivery What type of gland is it? It is an exocrine gland. Ok? Even more Examples of this are sweat glands, Salivary gland, tear gland, right? Here It is stored and ready to be used when needed
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Then he comes out. Ye Mainli Kya Release Does it? This releases enzymes. Isn't it?
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What does it release? Enzymes. Previous You read it in the chapter, right? and you enzyme You can also tell the name. Who is inside saliva?
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What enzyme is it? Please tell me once. Memory Is something coming? Salivary mileage. Yes. But which Endocrine gland is what we have to study Inside this chapter. These hormones release Does. The enzyme does not. these hormones Releases. First point point number one.
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What is the second point? It Releases Directly into blood. This is the second point No? What does he do? Stored in the duct Does. But this store doesn't do that. These He says, brother, send it directly in blood.
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I will give it. So send it directly into the blood I give it brother. Now this is what we have to read.
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Inside the chapter. That is, how many types of Glands are inside endocrine There are many different types that we Have to study. Let's start one by one Are. Now this is the difference, as it is I have already told you the difference. But
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You can read it once. Come quickly From. Like the first point I told you Told that it contains exocrine ducts I and endocrine do not have ducts.
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There is no storage option. These enzymes The son secretes it. And what does it do Is? It secretes hormones. Correct Is? The third difference is the exocrine glands which It happens that acts are locally, that is, they are limited.
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Its work in the area is limited. But this The endocrine glands are hormones releases and what does it do directly Is? Releases into the blood. That is, it acts.
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On target organs through blood. These are blood Thru works. Isn't it? While in this Nothing is released into the blood.
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Ok? Rest you know the differences. Meaning Rest you already know the example. Ok? Now let us study endocrine one by one.
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What are the glands inside our body? Are? Now by reading Endocrine Gland First brother, what are these hormones? These So tell me. See what hormones are?
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Hormones are certain types of chemicals There are messengers. That means this hello hello Hello, we send messages from here to there. Ok?
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So the chemicals inside our body messengers called endocrine Glands secrete and excrete What do we call them, son? We tell them There must be hormones. to hormones It is injected directly into the blood. Correct Is? Now, with the help of this image,
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This is male, this is female. of male and female All the endocrine glands inside There are beans. Just a different one. near the mail have testis and females have Ovary. All the other glands are the same Is. So, where do we start? sent from
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Start? With the mind. Come on, with your mind Let's start. Let's talk first Of the brain. Which gland is in the brain?
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Gland number one is called the pituitary gland. Gland. Where does it happen? In the send. sent in Where does it happen, son? Look at the hypothalamus Remember? Remember the hypothalamus? just told Thermos. Yes. So just below the hypothalamus
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You can see the bottom of the hypothalamus, right? These? Bottom of hypothalamus. once a little I will lower the brightness. of the hypothalamus You can see it right here at the bottom.
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Will go. Ok? There is a pituitary gland. What is the pituitary gland? master this Gland speaks. Why do you say it?
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Because do you know what it does? This one releases hormones that increase your Controls growth. read one by one Also take it. Come on. located located just Below the brain. Ok? secret several Hormones including growth hormone.
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Variant. Now what does this growth hormone do? Is? Growth hormone regulates the growth and Development of the Bones and Muscles. That is, empty Isn't it empty? Is it empty? huge. Do you know Why is his height so big? Because
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His growth hormone is more were released. Who has released it? The pituitary gland. Due to which his The height is so big. And some people are those who remain very small, whom we Dwarfs speak. Why is he a dwarf?
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Because their body produces less growth hormone. Has been released. So there are two points here.
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That you have to remember. What to remember? Look son. Growth hormone deficiency What will happen if it happens? Dwarfism will occur.
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And if there is more release of growth hormone So there will be zeitgeist. That means you will become empty.
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Powerful so big yes isn't it? like Khali You will become it. And remember this gland Controlled by the hypothalamus. Who controls Does it? Hypothalamus. i.e., the pituitary It also controls the glands Hypothalamus. Is it okay brother? very nice.
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I've got it? The next gland comes from the brain here But in the throat. Thyroid in the neck. Have you heard it?
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Someone in the neighborhood has thyroid problems. I got sick. What is thyroid? So Thyroid is a type of gland. This one Releases hormones. and that hormone We talk about thyroxine hormone. Son Remember the names of hormones. and where else
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Remember that located in England. This wind It happens in the pipe. the tube in your throat There is something there that breathes, isn't it?
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It is located. Ok? Image here I can see you too. Apart from that, now this What is the function of thyroxine hormone?
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Does it? Thyroxine hormone control rate of metabolism of carbohydrates, Fat and protein. That is, as much as These are digested things of your body.
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It will control his metabolism inside. Have you seen what happens with thyroid? Is? People either get fat or Become thin. Why? Because Thyroxine hormone controls this All the things. That is, who controls metabolism?
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Will you control it? Remember thyroxine. Correct Is? Okay, now this is the thyroxine hormone.
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Do you know what it is made of? This is made Iodine. Everyone must be aware of iodine. Correct Is? So remember this is made from iodine. And Do you know what the most shocking thing is? If If you have low iodine in your body
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Less thyroxine will be produced. and low thyroxine If it is made then a disease will come brother. Which one Will the disease come? that disease is called Gaiter. Gutter is a disease that can cause some People have necks that are absolutely beautiful
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She goes. Swelling occurs. Ok? Swelling of neck due to an enlarged Thyroid Gland Usually Caused by Lack of Iodine. If rrrrrrrrrrr Iodine is low. What do you say because of this?
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There is iodine in your salt. because if If there is iodine in salt then thyroxine is good It can be made in a way. Ok? And here Its solutions have been given that some rich Sources from which you can obtain iodine
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yes. Example is salt or fish or Some dairy products are also being produced. Okay brother, very good. Come down.
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Now there is another gland here. There is a gland along with the thyroid gland Parathyroid gland. Now Parathyroid The gland also releases a hormone. That The name of the hormone is parathormone. What name Is? Parathormone. Ok? what is its work
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Is? It also controls metabolism. Is. But whose? of calcium and phosphate Whose? Calcium and phosphate levels It controls. inside the blood The level of calcium and phosphate is Controls parathyroid hormone. Ok?
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Now let's come down further from here. down down Now that it has come, your chest has arrived. of the chest There is a gland in the middle which we call Thymus. Thanos not Thymus. Now this thymus See where the gland is located? I
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I will show it to you as well. Here is your Lungs. This is right in the center of the chest. Here But there is a small gland. Now this What is the function of the gland? Understand. This one
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releases the hormone that bears its name It's just beans. That is, this thymus hormone Releases. Ok? thymus hormones Releases. What is its main function? These Develops the body's immune system Is. Now I know a question comes up again and again.
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that in small children the thymus gland The size is big. And as the age As it progresses, the thymus gland shrinks.
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It happens. Why? Because when a child If he is younger, he needs more immunity.
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There is need. But once he grows up If he is, he does not need much immunity.
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It would have been. Therefore, this gland should shrink. goes. Ok? Young Children at Large Butt Shrink After Puberty. Ahead with the Edge It shrinks. very nice. Ahead Let's grow. Come down. and if you come down Brother, pancreas has arrived. Remember? of the stomach
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Pancreas next to it. Brother, pancreas. Address What is the most special feature of the pancreas?
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Is? that it is also an exocrine gland, it There is also an endocrine gland. Therefore this They say variant. It is a dual gland.
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What do you say? Dual gland. Why Are you saying son? Dual gland? because this If you remember, it releases enzymes.
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Was. Remember the story of two goons I told I taught you. If you don't read, then live.
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Read the process. Ok? So these enzymes also releases and this hormone also releases Does. Ok? So this is an exocrine It is also a gland because it releases enzymes.
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Works like trypsin, lipase. and this It is also an endocrine gland because it Hormones release two hormones. of one The name is insulin and the name of one is glucagon.
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Now do you know what this insulin is? Does it? your blood sugar level As it increases, it increases This reduces it. That means what does it do Is? Lowers the blood sugar level. Ok? And This glucagon does the opposite.
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Sometimes your blood sugar level may drop It becomes very less. So who will increase it?
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Does it? It increases this Hormones. That means the pancreas stores your blood Controls the sugar level. Now here But you must have heard the name of a disease Diabetes. Brother, is there anyone around?
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They say that I have diabetes. Now Stop eating sweets altogether. no sweetie Anyone will eat it. Yes. So now this insulin When the pancreas is reduced. Insulin What does it do? Reduces blood sugar.
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If there is a lack of insulin, diabetes may occur. Will go. Ok? So deficiency of insulin Causes diabetes. Ok? So if blood sugar Levels increased, insulin decreased. Insulin now If it decreases, brother, you will get diabetes. Memory What causes diabetes?
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Because of insulin. Ok? Now come down further I am here son. I will tell you all the questions now.
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More are coming down now. Now down By the time I arrived, there were two kidneys here. Missing you Two kidneys are gone. So on top of both kidneys There is a gland. on top of both kidneys It happens. We call it adrenal.
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Gland. What do you say? Adrenal gland. Ok? These are two glands. Both tops Occurs on the kidney. This is a hormone secrete something called adrenaline Hormones. Adrenaline hormone. This name is You must have heard. Boys say that I now have an adrenaline rush.
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Anyone can say anything, firstly boys The ego gets broken very quickly. Isn't it? I would also be included among his boys.
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Am. So I have the same problem. I have a very strange problem with me.
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That suppose I am driving a car. Is No? If someone comes from behind and hits my car Also gives. Ok? And if he comes He comes out and says sorry lovingly.
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If it happened by mistake then I am nothing I will speak. But if it's even a little bit The person in front also gets that arrogance.
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inside and he talks arrogantly like this Then brother, I will not leave you. This is a little bit problem because I have an adrenaline rush He goes at that time. Ok? So adrenaline What does the hormone do? This is your hot beat
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It regulates. regulate breathing rate Does. Regulates blood pressure. and carbohydrate metabolism It regulates. This is called gland of emergency.
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It is also called. What is said? Gland of Emergency or as we call it It is fight or flight, meaning fight or run away.
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Ok? So if a dog is chasing you So loudly, the speed at which you run yes. Why? because the adrenaline hormone It gets released on time. So if anyone If an emergency arises, then this gland of Emergency secretes its hormones
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Is. And what does this hormone do? and this is The question came again and again. Watch Explain How Adrenaline Helps Our Body to Face Emergency Situation. How does it help? So the first one Adrenaline hormone releases as soon as the point
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If it happens then our heart beat will become faster. Will go. That means the blood pump will be very high.
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Ok? More blood will be pumped. More You will get energy. Breathing rate increases Will go. Suddenly, you get more oxygen Will get it. Apart from that, divert blood from Digestive system to skeletal muscle. i.e More blood will flow to our muscles so that we
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Get energy to run or fight. Apart from that, prepare body for fight and Flight. Either fight or run. For him Gets the body prepared. Variant How can the question paper contain How does this hormone affect our body?
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prepares or helps the body Is. Remember these four points. Now the last two There are glands. There is a gland inside the male Which is testis. Testis also paired It happens inside. two in one mail There are testes. I hope everyone knows
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This will definitely happen. Now, in addition to that, this is a hormone releases and we call that hormone What do you say? it produces a mail Hormones. what we call Testosterone. What do you do?
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Testosterone. Ok? what is testosterone Is? Male sex hormones. We will detail this A How Do Organisms Reproduce? His Will read inside also. Ok? So much tension I have to take it. Why do you have any tension?
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That is your favorite chapter. Isn't it? No problem. Ok? Yes. So that means It releases testosterone.
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Is. Now the question arises, what is testosterone? Does it? So look at the main function of testosterone.
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What is? Testosterone controls the Development of Male Sex Organs and Male Features Such Age Deeper Voice Mistache Beard And more body hair. i.e. above the body Hair starts coming. Your voice first It was like this. Hi Auntie. How are you aunty? Hi
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Hi. Yes, ladies and gentlemen, welcome now. Your voice is like this. Isn't it? Why?
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Because inside your body Testosterone is here. Son, your voice is heavy Has occurred. It has been deeply disturbed. Yes, isn't it?
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So basically when you hit puberty At 13-14 years old, it is because of this hormone What happens? Our body has many Changes come. Inside Similarly Female It is a hormone, that is, it is a gland which We call it ovary. This too is in pair
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It is a present, son. o There are two ovaries Our. Meaning there are two inside the female body.
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There is ovary. Ok? Ok? this also pair It happens in. Now remember this here.
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releases hormones. There happens to be one our estrogen and one Progesterone. Now this estrogen would have been Isn't that what testosterone does in the male?
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They do this in females. Such as Controls development of female sex Organs secondary sexual characters. Is No? All the secondary sexual There are characters and that too is of this gland.
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Because it is due to this hormone that they grow Are. Whereas this progesterone is when This hormone is released when a female becomes pregnant.
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comes in use. Prepares Uterus for Implantation and maintenance pregnancy. When The woman becomes pregnant at that time. Bus You should remember that the relation of this hormone It is due to pregnancy. Maintenance pregnancy.
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Ok? Is this clear? This is the mail. this is it Gaya female. tell me quickly now Do you have any problem, any issue? here All our glands were there We started it once, son, with our minds.
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Let's revise it quickly. From here Get started pituitary pituitary. What controls the pituitary gland?
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Close your eyes and keep imagining. Hypothalamus Pituitary Gland Growth Hormones. Will come down. Will come down. here It has come to my throat. touching the throat Will you go? What will come here? will come here Thyroid. very nice. which hormone
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Used to be? Tell me quickly. Thyroxine. Correct Is? Then the parathyroid. Parathyroid hormone. Work Remember. Then we will come down. come down Will go. Will come down. will arrive here Chest. Isn't it? Does everyone remember? Chest Here the thymus becomes smaller in size.
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And went down to the pancreas. what does the pancreas do Used to be? pancreas releases insulin and releasing glucagon.
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And down I went, a kidney came. on the kidneys What is? Adrenal gland. which gland Is? Adrenal gland. what work does he do I told you. testis down inside the male, Ovaries in females. very nice. All of these
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Remember all the functions. Whatever is on these I will show you the questions that are coming.
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I am going to. But one of the most important parts Here's what people don't tell in school.
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Butt can come in paper. What is that? Feedback mechanism. What question comes up? It comes directly. Look, here comes the question.
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How is the timing and amount of release of Insulin in the blood regulated? That is, blood How does one know that blood sugar is low?
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If it decreases, release glucogen. Blood sugar increased. release of insulin Do it. How does the blood know? See Our body does not have a feedback mechanism It happens. What happens? Feedback mechanism.
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What is feedback mechanism? controls Hormone release timing and amount. One Let me explain it to you with an example. a table With the help of this, this is NCERT table son.
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Look, suppose the sugar level in our blood Increased. What will happen now? that the pancreas If there are cells, they will detect it. as soon as They will detect it and they will say insulin.
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Hello insulin. Come on, come on, let's get to work. Get to work. Get to work. Insulin We will run away. with blood sugar We will fight. blood sugar out Will remove it. What will happen now? There will be blood
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Sugar level will become low. Address to the pancreas Come on, my blood sugar level has gone low. Hi Hello Hello Glucoseine Glucoseine Come on come on Let's get Glucose. Glucogen will come. blood It will raise and throw the sugar level. blood
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Sugar level will come and do you understand? That is, one There is a feedback mechanism. And this feedback The mechanism is very important. If If this does not happen then our blood sugar level It can never be maintained. Ok? So
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Son, remember this table. The table is important. This is what we call it Feedback mechanism. If the feedback mechanism If it doesn't happen then do you know what will happen? then it will be Hormonal imbalance. That means the hormones are right
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Can't go the way. And know if If there is less insulin in our body then Diabetes may occur. And if more If there is insulin, a person can even go into coma Can. It's tata bye-bye goodbye. Coma I can also go. Why? Obviously a thing
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Is. If insulin is administered in excess, it can cause severe All the diseases also come. so less Too much insulin is both fatal.
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Brother. Let us understand the feedback mechanism as well. Is. So quickly something simple Give answers to questions. Come on, which Hormone is responsible for maintaining Sugar level in the body? aye hi hi hi hi hi hi hi hi hi ay hi hi hi hi ay hi
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Hi, such an easy question. Master Gland master The pituitary gland is located in the brain. in the mind Bhaiya select out of the following gland which does not occur as the pair in human Body. Which ones are not in pairs? you remember
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do it. Ovaries are in pairs, testes are in pairs occur in. Adrenal glands of the kidneys It is located above both the kidneys. one and only The one that is not in the pair is the pituitary.
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The next child grows abnormally tall which Hormone Might Be Responsible. Which ones Did he grow more because of hormones?
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Growth hormone. Who secretes? Pituitary gland. Name the Endocrine Gland associated with the following functions.
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Ok? Regulation of blood sugar level. Pancreas. What kind of question is this? Growth and Development Tell pituitary gland flight and flight.
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Adrenal glands are great. Let's see why Iodized salts? Iodized means iodine It should be in salt. Why? Because Iodine produces a hormone. you Do you remember which one? inside the thyroid gland The hormone that is released is due to iodine.
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It is formed. Its deficiency can cause a disease Is. Remember the name of that disease. that disease What do we call it? Gaiter. into what It happens? Whatever is good for us, that understanding She goes. Isn't it? It swells up. Let's go to
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Hormone XX comes everywhere. Why? X is secreted in blood when a Person under scary situation. Oh, when humans Which hormone is released when one gets scared?
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Is? Gland of Emergency. Adrenaline. Yes, very nice. Identify the hormone. I know about hormones. Which gland is it?
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Adrenal gland is. Explain its role in Dealing with scary and emergency situations. Whenever there is an emergency situation, this What will the gland do? This gland will say brother Increase your heart beat, increase your breathing rate.
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Send all the blood supply to the muscle. Is No? So that there is energy. very nice. next This is a good question. What is Hypo?
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Hypothyroidism? That means we have thyroid Did you hear but what is this hypothyroidism? Look, hypothyroidism is nothing. this same There are conditions which we have already read. This one Such is the condition. a condition in the thyroid Gland does not produce enough thyroxine
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Hormones. When there is less release of thyroxine hormone It happens. Why does this happen? When our bodies There is iodine deficiency inside.
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Because thyroxine is made from iodine only. Hormones are produced. So we take that condition This is what they say. Ok? what are you saying now Is? How can it be managed? How to manage this Might be possible? If we add more iodine
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If you eat it. Ok? What Dietary Changes Can help regulate? Which diet should it follow?
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Can we regulate changes? One is salt Take the one which contains iodine. something Non-vegetarian food like fish You can take dairy products etc.
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yes. Like I told you. Correct Is? very nice. Let's move ahead. next Questions Tidings Tidings on top of your screen Here is the tiding. Was a 14 year old girl Diagnosed with an enlarged thyroid gland.
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The same question came up about the thyroid gland. It got a little swollen. Why did this happen? This What is the disease called? The gutter speaks.
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Why did it happen? Because thyroxine hormone is low It was released. and low thyroxine hormone Why is it released? When iodine deficiency it occurs. And how to fulfill iodine deficiency Can it? Salt. Iodine in Salt Low Salt Take the salt. Ok? so the same beans
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There is a question. Over and over again in different ways. See also in the form of case based questions has been asked. Let's do one last question.
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Are. Then we will read about the plant. This one Good question son. carefully consider this Look Why is chemical communication better?
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then electrical impulse as a mean of communication between cells or multicellular Organism? This has been asked in 2025.
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I know any child would have this question. Didn't understand. Understand what he is saying? Now!
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We studied a nervous system. We read one Endocrine system. What they are saying is that the The endocrine system is better than the nervous system.
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From the system. Why so? I will tell you the reason Am. Look at our nervous tissue It is not present everywhere in the body. some parts is in. It is in some parts. while this The hormones that are secreted are
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Goes directly into the blood. And the blood It is present inside every cell of the body. Blood is every There is a place, right? That is, if the signal is If it has to reach the cell, which method is better?
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Is? The one with the gland. The chemical method is good. This chemical communication is endocrine.
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Gland this is good. what else would happen Is? Whenever a nerve impulse comes, It takes a reset time. i.e. signal From here to here, the reset will take place. Then The second signal will be available. So Continuous Signals cannot travel through the nervous system.
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Whereas chemical means hormones are released You can, right? How many hormones are in the blood?
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Release it? What's the problem? Now its Remember the points, son, what are the points?
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Are? What is chemical communication? It is better. Why? One is long Lasting effect i.e. release in the blood If it happens, it lasts for a long time Effect. Apart from that, wider range i.e. which hormones are those that travel to different tissues
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Can go. Can go to the cell. nervous The system reaches every part of the body Not there. remember that in addition to There are electrical impulses, isn't there one of them?
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There is recovery time. i.e. a reset time It happens. A signal came to reset. Second Signal came reset. So there's a time gap coming.
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Is. To prevent it, endocrine Gland is very good. Ok? Electrical impulses have a limited range.
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That means it would be in every part of the body. Not there. It is obvious. I have already told Am. These four pointers are important. Once When I upload the notes, read them.
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Take. This question was first seen in 2025 Had gone. Every child did something wrong Because no one expected it.
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Let's finally start the plant now. reading about. It is a small topic Plant. The animal is finished. Now look What is a plant? We also need to know about the plant Complete control and coordination Have to study. Ok? Will also study hormones.
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First, let us understand how a plant works. Controls and coordinates. I just I will drink water. So let's go to the plant, friend.
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Let's start the coordination. but from him First understand one thing son, you know that those people I know you also have an exam You might be feeling a little scared inside.
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How will the exam go and how will it not go? You probably haven't studied that well yet.
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I must not have done it. But I don't know you I just want to tell people one thing, when The whole world should not think anything It's impossible and you think it is If it is possible then yes it is possible. This world
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She will say that friend, you got so few marks despite studying so little. Will not come. Hey, you won't be able to get 95%.
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I will not be able to bring it. But if you believe in me You know you can do it, right?
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Then no power in the world can stop you. I can, son. Remember this. Ok?
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So whatever exam you have right now, it is tomorrow or the day after tomorrow.
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Whenever there is an exam, give your best, dear. Okay, best of all, now let's move on to coordination.
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Look at these plants, friend, the relationship between animals and plants Control and coordination is absolutely Why is it different? With the help of a difference.
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Let me explain it to you, look at the animals. What do specialized tissues have?
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There are things which we call nerves. Nerve tissues are called but of plants have no specialized tissue for conduction of The plant has no information, does it?
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There are no tissues. Then how to plant Do you do control and coordination? you have Have you seen the plant that you touch? Is No? Its leaves close to We say touch me nod. Touch Me No Mimosa Isn't she shy? Yes. so how are you doing
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Control and coordination? when he has someone There is no specialized tissue. nervous There is no tissue. Let me tell you how.
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Plant Everything is done with the help of water. Look Son, the movement has to change this Amount of water in the cell. That is, when that touch If you touch the Me Not plant, The water in the cell goes away and as soon as
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The water will stop flowing. water will come It will open. The water will stop flowing. Understanding Are you talking? Do you understand? That is, plants How can they move?
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Their control and coordination is possible By the change in amount of water. Variant. With whose help? Amount of water By changing. While how do animals move?
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The signal went to my muscles. Now what is the muscle do? Look son. Movement Happens Due To the change in the shape of muscle cells. That is, the one who The signal will reach the muscle cell. They It will change its shape and I will take my hand back.
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I will take it. This is how it happens. There is no use for water It is not there at all. But here because of the water When water went out of the plant, the leaf closed.
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When water came, the leaf opened. That is, the amount of What all things happen on water?
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Are dependent. is this thing clear Is? tell me fast. Even all of this Is everything clear? Ok? Very Excellent. Let's move ahead. Now look if I I am talking about the plant, so this is You know there's no one near the plant.
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There is no nervous system. But don't plant Makes various types of movements. which ones Does it move? you on the screen It will be clearly visible that there is a movement What about you? One is your kinetic movement and
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One is the Tropic Movement. Brother, what is this? Look at Tropic. Na One From The Tropic You will understand the matching word. on a Top. On a top. On a top. You all are also on I have to go to the top, son. So on top top means above
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Have to go. That is, tropic movement is such There is a movement in which growth is taking place.
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The plant is going up in the air. in the air No, it is going up. nastic movement is Non-growth related movement. Growth here It doesn't happen. Let me explain its example. Now!
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Will read in detail. I am explaining the example. Nastic movement means touch me touch me touch me.
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That means touch me not the plant. Touch Me The plant stopped after touching it. open back Went. There is no growth at all. But when When a plant is formed and starts growing, it Growth is a related movement. we call him
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There are tropic movements. i.e. Tropic What is movement? Directional Growth Towards and Away Stimulus Depends on Growth. So just remember this. This growth There is related movement. non-nastic movement Growth related movement. their difference I will tell you in the last. Ok? In detail. So
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Did you understand this? There is no growth in it There is no growth. Is it okay brother? now know To you? There are also two types of tropic movements.
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Which two types? Suppose if The movement has been towards stimulus. Don't do this now Ask what is a stimulus? Stimulus You know, right? There is a tree. If the tree is the sun If it is growing towards the Sun, what is it?
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For? The sun is the stimulus. So if the stimulus We call it that which grows towards Positive tropism. Remember. Remember.
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What is positive tropism? when a Plant parts grow and move toward the Stimulus. When it grows towards stimulus Yes, there is growth, we call it Positive tropism. and negative tropism What is? Suppose there is a plant that grows in the sun
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Growing in the other direction. i.e The stimulus is there and that other direction. I am growing. We call him Negative tropism. When a Plant Part Grows and Moves Away from the Stimulus.
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He starts moving away from the stimulus. then we What do you call that, son? Then we tell him would have been. What to remember? negative Tropism. Is this thing clear? Positive.
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Negative positive negative. very nice. Positive towards stimulus, away Negative. Ok? Now I understand this. But Basically, there are many types of tropic movements.
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Are. Because the stimulus will keep changing. I I am telling you a stimulus, sunlight Is. One stimulus is water. many There are stimuli. So one by one all types Tropic Movement Reads With The Help Of example. Let's go to the first tropic
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Movement phototropism. take a photo You take my photo. Hey, photo means light. Yes. So that means such a tropic movement What is tropic movement, son? Growth Relativized movement. One such growth related Movement in which what is the stimulus?
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What is Stimulus? light. towards the light There will be movement. Now look at phototropism.
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Two types. Positive tropism or negative Phototropism. What is positive phototropism? Is? When it grows towards the light and a light K Away will grow. Remember its example Keep. Which is the stem of the plant, son She always grows towards it. That means he
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Shows positive phototropism. While Joe Plants have roots, roots are below It goes inside the ground with the help of light, brother.
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She is going away. I mean, what does she do? What does she do negatively? negative Phototropism. Did you understand? Understanding Phototropism Came? What is Stimulus? There is light. light lights. the sunlight. Isn't it? If the light If it grows with positive
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Phototropism. Negative on the other side. Now here But no son, some questions come and they What kind of questions are there? that question There are image based questions. Thus Image based questions come. in that What do you say? I have given you a plant.
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Now you will be asked that which plant's What type of stem are you seeing?
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The tropic is moving and which route Is it doing a tropical type movement? So You see this plant.
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Heading towards the sunlight. That is, this is Phototropism. Photo Photo Yes this is positive Phototropism is negative phototropism.
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Similar questions are asked again and again They come related. Meaning you were given such images will go and ask what type of stem Is he moving? What type is this Is he moving? This is positive, this Negative. Ok? Next Next Tropic
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The movement we call Geotropism. Geo means gravity. Gravity. Isn't it? The movement in which What is Stimulus? Gravity. Gravity Where does it fit? facing down. Gravity will pull you Brother, she pulls me up from the ground. Isn't it?
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Yes. very nice. Movement of Plant Parts In Response to Gravity. That means here What is Stimulus? Gravity. give these also It will be of type. Positive geotropism beta Negative geotropism. If gravity is down It seems and the plant is also going down, so
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So positive tropism. But if gravity then We know what is down there. Butt Plant Up It is growing. What will this be? negative Geotropism. very nice. Now its also See frequently asked image based questions Let's go. Look at this.
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This is the stem of the plant. grow it up Has been. So what is she doing? negative Geotropism. Why? because gravity is It is hurting below, isn't it brother? While the roots that Look, the roots are going down. i.e
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What are the roots doing? doing the routes Positive geotropism. negative Geotropism Positive geotropism. Image based question will come, check your Inside the exam. Let us go. Next comes Chemotropism. i.e. a growth related What is the stimulus in the movement?
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Is? Any chemical reaction. any chemical Because when there is any movement, we call it What do you say? We call him Chemotropism. This is also of two types. There is one positive chemotropism, one is negative Chemotropism. Now the example of this is
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You will read about that in the next chapter, which is how Do organisms reproduce? inside him you You will also see a diagram like this. I I am just giving you an example. Now!
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I don't want to go into details. in the next chapter Will you read it? A pollen grain that grows in tubes If it happens, what is the reason for it? Bye Dee Help of chemotropism. Ok? Just this Remember the example for now. Pollen
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Tube Growing Towards Ovule. What is it Is? This is a type of chemotropism This is an example. Just remember the example now.
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For that pollen tube is growing. Bus What is the example? Chemotropism. Next You will read it in detail inside the chapter. Ok?
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Now comes hydrotropism. Hydro means Water. That is, what will be the stimulus here? Son? The stimulus will be water. Do you understand?
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It is obvious. What will the stimulus be? Son, is he here? Water. Water. Uncle Ji, water Please give it to me to drink. very nice. i.e. movement of Plant Parts in Response to Water. Water The movement that is happening because of this. Ok?
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If it is towards water then it is positive. If If it is in a different direction then it will be negative.
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Its example is also very simple. Roots What do you do? Searches for water. i.e What does she do? Positive Positive Hydrotropism. very nice. Last End One of the most important thigmotropism.
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What is Thigmotropism? Thigmo. Thigmo That means touch. Thigmo means touch. This is touch. i.e The tropic movement in which the stimulus is will be? Touch. Let me give you an example. Money Plant Isn't it? You must have seen money plant in homes. One
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They put up a stick. Money plant up It keeps rising. It keeps rising. Whose help From? With the help of sticks. So what are you giving the stick?
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Is? He is touching her. Touch. That means what is that Is? Thigmopism. very nice. What is thigmotropism? Now Remember one example of this. a plant There is a tendril. Tendril. Ok? So What does a tendril do? Tendril na up
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It keeps rising. Why? Because of touch From. That is, it shows thigmotropism. Is. So remember this example.
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Ok? They are sensitive to touch and show Positive thigmotropism means they grow towards the object they touch, i.e., e.g.
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He climbs along with whatever he gets. will go means what is that positive Thigmotropism is the ability to move in air along with touch.
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You too will not go up in the air You must have seen it somewhere nearby You see whose plant is this.
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If you can look at the tendril, then look at the tendril. This one came and it kept climbing up, right?
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What does tendril show positive? Thigmotropism took very well. this is Is done? Tropic Movement. Now I talk I do mechanical movements. Look brother What is nastic movement? Non-Growth Relativized movement. There is no growth here.
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What is an example? Touch me not touch me. Well, this Mimosa plant has one And the name is scientific name Misa Pudica. It is also written. I will tell.
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Mint Samosa with No Mint Chutney Missa Pudica. Ok. I will tell you now. Now this There are two types of kinetic movement.
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Bhaiya, the tropical movement is of the five-P type. Were. These two belong to me. One is thigmonasty and One is photonasty. I understand from the name itself will be. Thigmo means touch. Touch means that nastic Movement in which what is the stimulus? There is touch.
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Touch. I have already told you an example of this. Misa Pudica means the sensitive plant when we touch it If we do, what are its leaves? Leaf It gets folded. leaf her such They get folded. Ok? very nice.
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Another example means another type There is nastic movement which is photonasty. Auto means light means that nastic movement Non-growth related movements in which What is Stimulus? Say light. what is light Is? light. Now apart from this you have an example
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Have to remember. What is an example? One The flower is dandelion. Isn't it? and one more And what happens is the cusp opens in the light. i.e These flowers bloom as soon as the sun rises When the light comes, they open. would open up
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Are. Isn't it? The sunlight goes off Let's go. So what are they showing? These Showing photonasty. because of the light Are opening up. Ok? While some There are flowers like moon flower or We also call it evening flower. So
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What does the moon flower do? Opens in the dark. That is, when the sun goes down It is then that it opens. That is, the stimulus It's just light, right? So what is this?
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Photonasty. So photonasty thigmonasty Just remember the examples of both. over there Here is an example of Musapudi Moon Flower and dandelion. Remember these two.
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This is enough for you. sometimes when Because questions would come on examples Are. Let's now make the last and final difference Between tropic and tropic movement. in What is the difference between the two, brother? this is Tell. I told everything. see how?
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There is tropic movement. Remember Growth Dependent movement and growth within it It doesn't happen. Now think for yourself what tropic The movement is reversible. Hey, the plant has grown Will the plant become smaller? No. So What are these? These are non-reversible
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Are. They are permanent. While nestic Movement temporary and reversible. leaf It was open, the leaf closed. The leaf was open, The leaf closed. very nice. other than that Tropic movements are unidirectional.
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That means growth will happen either here or here Will happen. While nastic movement is non Directional it will open like this, it will open like this.
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It will open like this, it will open like this. any Bhaiya, you can open up in direction. Isn't it?
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So what are nastic movements? Very Excellent. Remember one more point. Tropic The movements that take place are slow.
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The growth of the plant slows down. Butt Jab Touch If you touch the Me Not plant, do it quickly.
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It happens. That means immediate action takes place. Very fast. Ok? So what would this be Is? Immediate. So these are the four differences.
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Son, remember this. Look at some questions Are. And then finally the last topic which is Plant hormones start.
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Movement of Sunflowers Towards the Light Is An example of. Describe the movement of the sunflower.
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It has happened towards the light. what type is he Is there tropic movement? He has moved Towards the light. So that is phototropism. His Growth is happening son. grow in that direction Sunflower always does. very nice.
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Next you can see this. Observe the What is? Isn't she shy? So you can see Earlier it was like this, whenever I touched it it would stop like this Went. So what caused this shutdown? Option Look carefully. There is a question. change in the
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Amount of water. I told you as much as There are movements happening inside the plant, right?
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Because of whom are these happening? Amount of water By changing. Isn't it? If the water goes away It is closed at. Next Question Assertion It is reasoning. Leaf of Misa Pudica Roof Vent Touched. Does it turn off if you touch it?
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Is. The statement is absolutely true. The Movement of Misa is caused by abnormal growth on both Side of the Leaf. No, this movement would have been Yes, this happens because of water. So Reese is just plain wrong. Assertion is true but reason
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Is Falls. very nice. Let's have another one Let's see the question. A Raghav bought a plant It has been kept like this. Now he is asking us He is asking us what type of tropism this is.
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Is? So you can see this is the sun. Sun Is bending towards. look at the sun He is bending. I asked you this question I had told you that too. This is phototropism. so such A lot of questions are asked. Name
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The type of movement shown in the folding of Humispedica. Tell us about nastic movement.
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Opening of dandelion flower. This is also nostalgic There is movement. Remembering the Muusiapodica It comes because of touch. That means this Thigmonasty Hai and Dandelion Flower Light Because of this, that is, this is photonasty. What is it Is? Yes, thigmonasty and this is photonasty.
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very nice. That's why I named it I reminded you. Let's move ahead quickly Let's grow. Last topic the plant hormones.
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What is a plant hormone? about him now We will talk. Look at the plant hormones They are also called phytohormones.
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goes. Like there are many animals inside There were hormones. There are also many inside the plant.
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There are hormones and we call them phyto Hormones. Now these hormones have some There are specific tasks. The first task is Development i.e. growth related work. Is No? Because the plant has to grow. So There are basically three main tasks. one would have been
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The aim is to divide the cell. Cell division. One The cell has to be enlarged. Cell Enlargement means a huge growth of the cell To get it done. And one is cell differentiation.
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i.e creating a specialization of the cell that a cell This will be the work. So three things happen. One dividing a cell, making a cell larger and differentiation of a cell. These There are three main tasks. Now how many types
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Are there hormones inside plants? So that There are five types of hormones. Ok? In which there are three growth related hormones and two hormone growth inhibitors.
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That means we stop the growth brother. Growth Why are you stopping me brother? Let's stop.
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I will tell you why now? First start We do. which increase growth With them. As our first one is Augin. Origin, that is, remember first Augin. What does Augin do, son? Augin Na First of all, it promotes cell elongation in
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Shoots. The shoot of the plant is called big. It is useful to get it done. Remember auxin Where is it presented? Auxin Present It happens at the tips. That means accept this It's our shoot. Present on the tip of this shoot
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Gotta be auxin. And similarly the root is Auxin will also be present at the tip of the root.
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i.e. present at the tip of the shoot and root is auxin. Ok? Because this tip What does he do when he is present?
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Controls phototropism. That is, if the light If the plant grows, whose will grow? Will it work with help? Hey brother, because of auxin Only then will it grow. very nice. Ok?
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and geotropism. That means you can see this The root moves down with the help of gravity.
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Who is driving the growth? administering auxin No? He is present on the tip. Remember.
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Ok? Now a very important question which is It has been asked repeatedly. what happens is that When the sunlight falls, when the light falls How does the plant bend? After all, the plant How does the bend happen? I made a diagram
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Let me explain it to you with help. Look what's on the tip Is it present? This tip is presented on Oxin.
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Is. Suppose the light came from here. accept it This is how the light came. As soon as the direction Neither does light come from it nor does auxin receive light Don't like it. Does not like sunlight. So that
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Accumulates in the other direction. That means it comes in this direction. And What does auxin do? Elongation means growth Does. So now this is the part No, this one at the back, this sunlight should come here.
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Has been. So the back part is It will increase. And as soon as the back part If it grows, this plant will start bending like this.
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Did you understand the matter? If the rear part increases What will the plant be? Look, he bent it like this.
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In which direction? direction of the sun In. Understood? Did you understand this? That is, when I have shown how light falls in the next slide.
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Maybe he has even got it written. When These Lights Fall If it does, the auxin hormone moves towards The shaded area. goes to the other side Is. It makes the place grow. Cell Elongate Does. what happens then? Edge the Result
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Sale of the Shaded Side Gro Lager. and which It is a plant that bends sunlight in such a way Towards. Is it okay brother? What about auxin?
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Have you understood everything? So the next hormone Let's move on to the side that is Giblin. Vibrillin What do you do son? germinates the seed Is. Or I could write breaks.
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Breaks dormancy. dormancy dormancy what It happens? Look, seed has such a property That the seed should not be grown. So that Breaks the property and seeds It germinates i.e. makes it fertile.
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Grows it. So that means seed germination and Breaking dormancy, break, break Dormancy of the seed is its main function. What Will you remember this? very nice. And Flowering means flowers appear. in that This also comes in handy. very nice. Bus
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You have to remember each and every line in this. Is No? It is not that important. Cytokinin.
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Cytokinin means cell division. That's what it means. hidden in the word It has happened. That means what will he do? will promote To cell division. What will he do? Its just This is the work. Remember. Cytokinin. Cyto That means there is a sale, son. So what does it do
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Is? What does it do in cell division? Help Does. Found in high concentrations in Fruits and seeds. of fruits and seeds It is present in very high concentration inside Because it makes the cells divide quickly.
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From. Ok? very nice. These three growth It's hormones. Oxin what is big brother doing Is? Tip Pay is present. Main Growth Same He is getting it done. What is Giblin doing? Seed is germinating. Breaking the Dormancy Used to be. What is he doing? Cell Division
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He is getting it done. Now comes two people who are growth Will stop. One is acetic acid. Essesic What does acid do, son? Inhabits Growth.
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That means it stops growth. Isn't it? What else Does it? Causes wilting of leaves.
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Wilting of leaves He drops it. Induces dormancy. i.e It promotes dormancy. Dormancy Which one breaks it? Goblin. It promotes Is. He says the seed will not grow. not growing Is. Don't grow. Ok? very nice.
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Acts as the stress hormone. Now understand Son, you must be wondering why the plant Why not grow? Brother, these hormones Why is it in the plant? Understand. accept it There is a famine, which means there is no water. If water
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If not, the plant will die. Isn't it? So This hormone is released at that time.
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Because what the plant says is that the more There are some extra things, please remove them.
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That means shake the leaves down. are understanding yes? Shake off the leaves. Isn't it? stomata Keep it close. Stomata do not open Would. Isn't it? So what does it do?
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It also closes the stomata so that water Don't go away. Water should not go.
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It keeps the stomata closed. Because of this What do we call this? stress hormones Also speak. So the stress of the plant Who is a hormone? Acetic acid. whenever If you are stressed then take a look at Essic brother.
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The plant is also getting stressed, brother. It is our destiny. Isn't it? When the plant If someone can get stressed then we can too.
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Is. Ok? So abscisic acid does this work Is. Inhibits growth. Now another brother of his It is ethylene. What does ethylene do? Mainley Ripens the fruit. Understanding Ripening yes? That means they do not talk about our fruits.
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He has become ripe. You can take this example from Let me explain. It has become ingrained in Hindi. Is No? So, it is a type of gas that What does it do? It helps in ripening of fruits It is used for cooking inside. Now here is a
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A question is asked. Will you bring mangoes? Mango to bring a green mango that's just ripe it has not. wrap it in foil, Wrap it with paper. Within a day or two he The mango will ripen. Why? because in that fruit
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This gas is released from ethylene gas. And Because you have trapped this gas. Inside the paper. So it is inside the paper.
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What will happen with that? What will ethylene gas do? Ripening of fruit Will give. Therefore, if any fruit is cooked If it is there then wrap it in paper. Next day See, the fruit will ripen automatically due to
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Ethylene gas. Ok? So all of these Son, it's hormones. You will see it on the screen here They are visible too. Where is auxin present?
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It happens? Once you try it quickly, You can also read it. Auxin is present Where is it? On the tip of the shoot. Ok?
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Where is Gabberlin presented? Stem In the region. What does it do? Its main work What is? Germinating the seeds.
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Cytokinins are used for cell division. Acetic acid inhibits growth. ethylene What does it do? The main function of ethylene is Getting the fruit written. here here But everything is over. Let's quickly ask questions Apply it. You will tell me the answer. Which
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Plant Hormone Is Responsible for Sale Elongation? Who made the cell taller? Memory do it. Who used to be present at the tip? Auxin Bhaiya A for Apple. A for Augin. First of all This is what came and this is his main work. Let's go next
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Question. Which Plant Hormone Helps In ripening? very nice. Ethylene gas. Ok? Next question vs plant hormones Help in breaking seed dormancy? oh yes Who used to break seed dormancy brother? Remember The second brother would germinate the seed.
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Was. Giblin. Ok? where are you on Produce? How they help in phototropism. See where auxins are present? Tip Of the stem and root. Isn't it? And how is this Do you get phototropism done? now you remember will be. I have told you that there is light.
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They get concentrated on dark regions. That Make the region bigger and it bends Goes to the plant. Is it okay brother? Very Excellent. Oh ho ho finally finally friends here here here our entire The chapter is over. Ok? of the details
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Inside you will find everything line by line. Taught everything. I hope you understand everything Must have come. Let's do this lecture here End. And one line that I want to share with you today This is what I want to say. in every lecture
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I say that you always smile, I have hidden my sorrow. Time will tell for those people.
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Who are we? And our time has come. You are bringing your own time. Ok?
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This is your time. Never feel like in life If it's difficult, remember this is your time.
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Is. Your time is running out. yours It's time to make a comeback. It's your time To prove that world wrong. yours It's time to silence all those people.
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Ok? you can. I know. I No you can do this. I'm saying you do it Can. You can do it. Go, right? If I liked the entire video If you liked the lecture, then the Instagram link Is. Please tell me your story if
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If you liked it. Isn't it? The rest of the rest If there is anything missing, please comment.
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Please do tell me. On this note. Thank you everyone. Which lecture do you want next, please comment.
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Narrate. Take care. My name is Prashant.
Topics:Control and CoordinationClass 10 ScienceNCERTNervous SystemEndocrine SystemBrain FunctionsReflex ActionsPlant MovementsTropic MovementNastic Movement
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