The Brain

I am talking about the structure and function of the brain. Remember, structure is what it is made of. And function is what it does. Sometimes we call it anatomy or structure and physiology or function. And what's so great is that we go through seventeen different brain structures, so they form the blueprint of the brain. But you use your brain to process it. And if you do a good job, when we get to the end and I go through all the parts, you should be able to tell me what their structure is and what they do. And what organisms have a brain? That and the animals.

Animals use nerves. They have muscles to move. And that's why they have to organize this movement. And that's how they use the brain. And if we look at the two basic body plans of animals, some of them are radially symmetrical. In other words, they are built almost around the tire. And then some are bilaterally symmetrical. In other words, a tiger that you can drag to the center of the line. It becomes a clear right and left side. This becomes a clear advantage and the end. And when we became bilaterally symmetrical, we had to organize that movement. And this is a simple animal body plan. And so this animal moves to the right. And when he does, he needs to get information.

We call this sensory information via neurons. And so you're actually taking in sensory information from your eyes, your ears. And then you integrate that information in your brain. You get it. And then you figure out what you want to do. It depends on how you intend to operate. And then that motor neuron circuit is turned off. Or motor nerves. This loop in simple animals is also important for understanding how our brains work. But when we look at these real primitive brains, we see that they have a real common structure. They have these four nodes. And we call them, well, the first one is not a node, but a spinal cord. Then we have the hindbrain, the midbrain, and finally the forebrain. And this applies to all animals. And if we look at something like a shark, it looks like a pretty primitive brain.

You can see here that we have a spinal cord that carries information. Then we have the hindbrain, the midbrain and the forebrain. And one thing you have to remember is that the closer we are to the spinal cord, the more basic functions there are. And here we are. It's basically a heartbeat. Continue the cycle. Digestion in sharks. But if the shark decides to attack you or has some kind of emotional reaction, it's here in the forebrain. If we look at you now, when you were very small, when you were an embryo, you had a brain that looked very similar. You had a spinal cord. You had a brain then. You had a midbrain. And then you had a forebrain. But during development, the brain changes radically.

And this is what a grown brain looks like. So we still see that spinal cord. Then we have the hindbrain. We have a midbrain. But look how big that forebrain is. So all those feelings and memories and all that thinking that we normally think about as the brain is in the forebrain. And so we come to the actual anatomy. And so there are 17 episodes to go through. So one should always think, what and how is the structure called? where is it So what is this feature, what does it do? So if we look at the basic map of the brain, we see that these four things immediately jump out. Weand sees the brainstem. Then we see the cerebellum at the back of the brain. So again, to correct you, the eyes are up here.

So it would be on the back of the head. So it becomes the cerebellum. Then we have the hypothalamic region of the thalamus. And finally, we have the brain, which is the controlling part of the brain. And so it begins in the brain stem. The brainstem is divided into three individual structures. So if we start at the bottom, we have the medulla oblongata, the pons, and finally the midbrain. And so these three things, the medulla oblongata, the pons, and the midbrain make up what we call the brainstem. That is, the structure. What and function is it? Well, it really does two things. The first thing he does is these basic needs.

It supports breathing, circulation, digestion, swallowing. All of this is under the control of the brain stem. If the brainstem is damaged, it is catastrophic. What else does it do? There will be information later. So we have sensory information, like this worm, going into the brain. And then the motor nerves run out. And so the brainstem is important in channeling information and filtering information and sending it where it needs to go. What is behind it? We have a cerebellum The cerebellum is responsible for motor control. So if you play sports, for example, it's the cerebellum and it gives you coordination. And it also gives you motor memory. I hope this was helpful.