O brain it consists of several neurons and is present in all vertebrate animals, it is one of the largest organs of the human body located in the central nervous system, its weight reaches approximately 1.3 kg and its main function is to control the entire body of our body. Let's get to know this fantastic organ of the human body?
As we have seen, the brain is an organ of great importance to our body and is present in the skull, it can be divided into 3 main parts: Brain, brainstem, and the cerebellum both have a very important role in the brain and need to work together to ensure the best functioning in our brain. body. Let's get to know each one of them?
Before, follow the location of each one for better understanding:
Brain: The brain itself is divided into two parts, the telencephalon, which is the largest part of the brain, in its structure we can repair earthworm shapes that are called brain gyruses and sulci. And we have the Diencephalon, which is a smaller, more centralized part, weighing up to 4 g and comprising the thalamus and the hypothalamus.
The telencephalon in its most superficial part is composed of a thin layer of substances, this substance is gray in color. structures and concentrations of neuron bodies, this region is called the cerebral cortex, below we find an area filled by a white substance, this substance is composed of axons of neurons, the axon of neurons is responsible for conducting impulses electric. The telencephalon is divided into two structures called hemispheres, there are two in total, hemisphere right and left hemisphere, both are separated by a fissure, which is called a fissure. longitudinal. As we can see in this illustrative image:
Because of the separation many think they are independent functions, but they are mistaken, they remain connected by a kind of beam of fibers called the corpus callosum, but there is an important difference between them, some research reveals that the side that controls speech is the left hemisphere, the right hemisphere controls the individual's ability to orient himself in certain places, such as an object, people, the individual body, anyway. Each cerebral hemisphere is divided into 4 parts: Frontal, parietal, temporal, occipital lobe besides, they form a region called the limbic system, this region is responsible for our varied emotions.
brain stem: The brainstem is found in the lower part of the brain, it looks like a tree trunk, it has as interference the control of breathing and transmits impulses to the cerebellum, it is divided into three parts:
A higher part, called the midbrain, responsible for the main functions of our body, such as vision, hearing, eye and body movement, in the intermediate part, called bridge, which is responsible for transmitting information to the medulla and a lower part called the bubo, the same extends into the spinal column, forming the spinal cord or spinal cord, it is through it that all stimuli that travel to the brain pass.
Cerebellum: If located behind the brainstem, it means small brain, its function is to muscle coordination and balance maintenance, it captures sensory impulses such as tendons and muscles.
All these structures are extremely important and need to be well protected, their protection is the responsibility of the membranes of connective tissue, called the meninges, and the fluid that circulates between these membranes, called the cerebrospinal fluid and the bone structure itself, the skull.
The meninges that line the brain and spinal cord are divided into 3: One is thinner and more internal, we can call it the pia mater, another intermediate membrane called the arachnoid, and finally it is located in the outer membrane, presents characteristics in its thick, thick structure, called the Dura mater
The cerebrospinal fluid, or cerebrospinal fluid, is a fluid that circulates around the brain and in the spinal cord and ventricles, which are cavities. found in the brain, the fluid protects the central nervous system by absorbing shocks and aids in nutrition and system waste removal. central nervous system.
Fantastic every structure present in the brain, isn't it? In addition to being structures of great importance, they have important functions for the functioning of our body on a daily basis.
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