The Brain: Parts And Main Functions Of The Brain

The most important organ in the entire body is the brain, since we basically think and act 99% from it. This organ is a very complex organ, which sends all the orders to the body and let’s say, it is the one that commands.

In addition to that, this organ is in charge of managing nerve impulses, stimuli and is also in charge of performing unconscious functions such as breathing or walking. All this, oddly enough, is controlled by the brain.

In addition, we also know that it controls emotions such as love, so really when you have a heartbreak, you should not blame your heart, but your brain, since it is the one that really takes care of everything.

Of course, it is also in charge of mathematical thinking and its ability is the one that best distinguishes intelligent people from the clumsiest, as well as distinguishing human beings from animals.

For this reason, having such an evolved and complex mind, we can not only limit ourselves to saying that the mind serves to help us do X things, but we also have to examine it in depth, part by part.

The brain is divided into several parts, which in turn are divided into more subparts, and so on. This organ has differentiated parts because each one performs a function, so if you want to know exactly what the brain does, you should study part by part instead of all together.

That is why we are there, to analyze all the parts of this complex organ and determine the functioning of each one. After reading these instructions, you will store the parts of your own brain in your brain, which will allow you to know more about it.

Instructions for Parts and Main Functions of the Brain

  1. Brain stem: The first part of the brain that we are going to see is the brain stem, a part that is the part that is below it. The main function of this part is to control some very important functions for the human body, but which are carried out involuntarily. For example, we have respiration, control of the heartbeat, digestion, control of blood pressure, and so on. These parts are carried out without our control, but they are very important to be able to live normally. This part is directly connected to the spinal cord, through which it sends signals to the organs in charge of the previously mentioned functions. The three parts of this part of the brain are the medulla oblongata, the pons, and finally the midbrain.
  2. Cerebellum: Now we go with the second part of the brain, which is known as the cerebellum. This part is located in the posterior part of the brain and is attached to it.  The cerebellum is mainly in charge of controlling some parts related to the movement of the body, both voluntarily and involuntarily. For example, without this organ, we could not walk in a coordinated way and we could not have balance, since it is the one that It is responsible for us to be able to walk upright, to be able to run, to be able to walk normally… Furthermore, young children take time to learn to walk because this organ has not yet fully developed.
  3. Brain: Finally, we go with the most important part, that is, the brain, which is the fundamental part of our body and the one that carries everything. The brain controls practically everything that is conscious, such as emotions, thoughts, what we remember, decisions, how we react to a certain stimulus, decision-making, problem solving. In short, practically everything, since it is what it handles practically all the signals we receive and then processes them in the correct way, trying to perform the best possible function. The brain is divided into several parts, which in turn have several subdivisions of different types. Being such an important and complete organ, we are going to see them all in an extensive way, in order to understand it more effectively.
    1. Limbic brain: First, we have the little limbic brain, which is also known as the emotional brain. This brain does not perform logical functions, but it is in charge of processing emotions such as love, sadness, joy. It is also the organ that makes us fall in love, as well as the one that makes us suffer from heartbreak. Without the limbic system, we would be robots without feelings, so it is undoubtedly one of the most important parts of the body, since it makes us sentient beings.
    2. Cerebral cortex: The cerebral cortex basically takes care of everything else, that is, logical thinking, memories, songs, speech, writing, mathematics, images… This part of the brain is the largest and most complex and is undoubtedly the one that most determines our behavior. Let’s say the part that serves to be able to control the body consciously, since the parts that we have seen before do so unconsciously. This organ is very complex and is usually divided in two ways. There are people who divide it into two hemispheres, one for the non-verbal part and the other for the verbal part. Other people divide it into 4 different lobes, one for each action. Since both are correct, we are going to look at both divisions.
    3. Division by hemispheres: The supporters of this division divide the brain into two hemispheres, the one on the left and the one on the right. Each one is in charge of one thing, to control a part of the body and to manage certain functions.  Let’s see it.
      1. Left hemisphere: This hemisphere is capable of controlling the right part of the body and is the most dominant in almost all parts (which is why most of us are right-handed). This part of the body is in charge of the verbal expression of that person, such as writing, reading and, above all, logical and more conscious thinking. If, for example, you have damage to this hemisphere, it will be difficult for you to read and write normally
      2. Right hemisphere: This hemisphere, in addition to controlling the left part, is just the opposite of the other, since it is not usually the dominant one and is in charge of the non-verbal subject. For example, this hemisphere controls memory, intuition, musical and visual intelligence. People with this more developed hemisphere are believed to be left-handed and for this reason, left-handers are usually very talented in sports such as soccer, due to their greater vision of the game and control of the ball, thanks to a greater development in this hemisphere.
    4. Division by lobes: This division is similar to that of the hemispheres, but instead of focusing on different parts, it focuses on different functions that each lobe can do.  There are a total of 4, which are found in both hemispheres, but with separate and differentiated functions.
      1. Front: First of all, we have the front, a part that in most cases has a lot to do with logical and mathematical thinking. Here you basically think about the problems and the possible solutions to them, being the most logical part of all.
      2. Parietal: Secondly, we have the parietal, which is the zone of stimuli. If you ever feel pain, it’s because the parietal is sending the signals. Here pain, temperature, the 5 senses are also controlled and it is the one that more or less controls the stimuli we feel from the outside.
      3. Temporal: As its name indicates, the temporal is a lobe that is related to time and memories, rather, with memory. In this lobe, everything we remember is stored, but not only the facts, but also the images, sounds and also the stimuli that we have associated with a certain memory.
      4. Occipital: Finally, we have the occipital, about which not much is known yet. It is believed that it is in charge of everything visual, that is, the one that projects the visual image of the eyes in the brain, so it is the one that allows us to see.  However, we still need to do a lot of research to discover new functions of it.
    5. Nervous system: The nervous system is not a part of the brain as such, but I didn’t want to leave it out for a very simple reason, it’s connected to the brain. Let’s say that the brain is the head of the nervous system, but the way in which the brain controls the body is due to this system of nerves located throughout the body. The brain connects to this system through the spinal cord, which connects to the brain stem as we have seen. So, any order that we give from the brain, will go through the spinal cord directly to the nerves, so that they do the work. For example, if I want to write, the brain will send commands to press this key. It is also in charge of collecting the stimuli from the parietal, for example, since the parietal is the one that processes them, but does not collect them. In short, the nervous system, although it is not part of the brain, does allow it to function as we all know.

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