the central nervous system is inextricably linked to the brain.Brain structure largely determines its functions and properties.A place to put his brain membranes surrounding the nature defined in the cranial cavity.We can trace the full inner surface matching to the shape of the calvarium upper ventral surface of the brain.The bottom surface of the base of the brain difficult terrain, and corresponds to a cranial pits on the internal base of the skull.
Weight brain already adult varies between 1100-2000 grams.Starting from 20 years up to the age of sixty, and the mass of the brain, and its volume remain unchanged and the maximum for each individual.
Considering the structure of the brain, it stands out the most outstanding elements, which is what the three major components.It paired hemispheres, brain stem and cerebellum.
elements, the most functional are burdened hemisphere of the human brain.In adults, the most powerful and the most important element of the central nervous system.Hemispheric departments are arranged so that they are able to cover all the other components of the brain.For the separation of the right and left hemisphere is a deep longitudinal slot of the brain, it reaches a large brain spikes or so-called the corpus callosum.In the posterior regions of the longitudinal slot comes to the transverse slit of the brain.It serves for the separation of the hemispheres of the cerebellum.
All that is disposed below, except for the cerebellum - a component parts of the brain stem, they are called: the medulla oblongata, rear, middle and intermediate divisions.But it is closer to the section studied the structure of the human spinal cord.
answer questions about the nature of occurrence of the main functions of the central nervous system, which bothered scientists and doctors, has allowed them to work on the study of human physiology.Only by understanding the structure of the brain, it is possible to explain the wide range of processes that arise as a result of human activity.As a complex mechanism, which for various functions meet the individual parts, and central nervous system function distributed load on its various components.For example, the answer to the question of localization (location) regions responsible for performing the most basic functions that give the structure of the cerebral cortex.
of motor function controls the cortical analyzer department responsible for this function.It is located in front of the central gyrus, in front of the central sulcus.This area was the location of the nerve cells that their activities meet even the tiniest movement of the body.
large nerve cells of their processes, which are located in the cortex, its deep layers, are drawn in the medulla oblongata, in this place there is a crossing of a substantial part thereof, ie,transition occurs on the opposite side.Complete the transition, they descend along the spinal cord, there already crossed their remaining fragments.In front of the spinal cord, they are contacted with nerve cells, which are located.The signal arising from the cortex as by wire reaches motoneurons, they reach the muscle fibers.
for the implementation of the auditory function is responsible auditory region located in the temporal lobe of the cortex considered.Visual functions assigned to the occipital lobe in the cerebral cortex.Damage to any of the above areas leads to certain disorders of the central nervous system.
structure of the brain has the ability to be divided not only by the elements.The brain, like the back, surrounded by three shells.They are divided into internal (soft), medium (web) and external (hard) shell.Each of them are a direct continuation of the spinal membranes.
Despite the in-depth study of this important body, all my secrets, he is in no hurry to disclose.But the hard work of physicians and scientists do not cease to this day.Their perseverance and tenacity are aimed at achieving the noble goals in the struggle for human health.
