Do you know what is the number of cerebral nerves? Get to know her in this article.
In the following, we will learn about the most important information about the number of cerebral nerves and other details:
The number of cerebral nerves
Many articles assert that the human brain contains a hundred billion neurons, but none of them cite medical research or studies.
Brazilian researcher Susana Herculano Hozel recently revealed that these estimates may not be completely accurate, and she has no scientific source to confirm their validity, so she decided to verify the accuracy of this number by taking a sample from the brain and counting the number of neurons in it, then she calculated the remaining volume. From the brain after dissolving the cell membranes to get rid of the problem of the difference in the density of neurons from one region to another in the brain.
The research I prepared after analyzing neurons in a group of brains found that the human brain contains 86 billion neurons on average, and thus the number of brain nerves is not one hundred billion.
Cerebral nerve functions
After you know the number of cerebral nerves, the functions of cerebral nerves are as follows:
1. Cognitive ability
All the things that a person learns, does, and sees are processed in the cerebral cortex first, and then the important information is transmitted to the interior to other areas of the brain such as the amygdala and hippocampus for long-term storage and remembering, so that these messages are transmitted through neurons in the brain to pathways that serve as the basis for cognitive memory .
2. Movement
The right side of the brain controls the movements of the left side, and in turn the left side of the brain also controls the movements of the right side, which means that parts of the brain including nerves move different parts of the body.
3. Basic bodily functions
A part of the peripheral nervous system called the autonomic nervous system controls many involuntary body processes, such as: digestion, tremors, breathing, sensory control, and sweating.
Medical conditions affecting the nerves of the brain
Here are some medical conditions that may affect the nerves of the brain
brain tumors
A tumor is an abnormal growth of tissue in the brain. It may grow and spread rapidly, causing severe symptoms, or it may grow slowly but produce mild symptoms until the tumor becomes larger.
Cerebral Palsy
This condition results from damage to the brain before or during the birth of the child or during the first years of his life, or due to a defect in development, and it affects the body''s ability to move and the motor areas of the brain.
Epilepsy
This condition affects the nervous system and may lead to epileptic seizures. It includes partial seizures in certain areas of the brain, and its symptoms vary according to the location of the seizure activity.
Meningitis
It is often caused by viruses and bacteria, and it affects the spinal cord and brain membranes.
mental illness
Mental illnesses include a wide range of problems in the way a person thinks and behaves. Some of these illnesses may be inherited, but more often they can be caused by drug and alcohol abuse or brain injury.
External head injuries
Direct blows to the head or falls usually only hurt the scalp, but internal head injuries are more dangerous. Because the skull serves to protect the delicate brain.
Concussion
It is a type of internal head injury that causes a temporary loss of normal brain function, and repeated concussions can lead to permanent brain injury.
