not only a specialist, but every educated person is useful to know the basic information about the structure of the brain.The brain, its properties and livelihoods remain largely a mystery to modern science.The study of the brain is devoted to a huge section in medicine.
brain regions
for beginners to learn the structure of the brain need to know that there are five main divisions: the average, long, rear, intermediate, final.The structure of the midbrain, and medulla rear has many similar features to the spinal cord.These departments have the nerves to communicate with the internal organs, muscles, skin, and united by a common scientific term "part of the brain stem."This part also often carry and midbrain.
device telencephalon, and in particular its hemispheres, has significant differences from the departments of the stem.The accumulation of nerve cells is the number reaches 109. This is a huge number of neurons located in multiple layers.Has evolved as a result of labor and speech, end the human brain is the most developed of all existing on the planet.Brain Hemisphere - is, in fact, the material substrate defining the higher nervous activity.
Skins brain
studying the structure of the brain, you can not miss the attention of his shell.The brain, like the spinal cord, surrounded by three membranes: the inner, middle and outer.
inner shell (soft) is immediately adjacent to the brain and accurately repeats its relief.The ventricles are arranged plexus of blood vessels, producing a protective cerebrospinal fluid.
average shell (web), it does not call in the furrow, and spreads between the convolutions forming space (tanks), which is the circulation of cerebrospinal fluid.
outer casing (solid) has special processes (growths), which are located between the parts of the brain and protect it from shocks.The most significant are the sickle of the brain associated with the longitudinal groove between the hemispheres, and besides him gallop cerebellar hemispheres and separating the cerebellum.The outer shell is located sinuses (special channels through which the outflow of venous blood).The main sinuses are Sagittal (upper and lower), transverse (right and left), sigmoid (left and right) and straight sinus.The function of the blood supply to the brain is performed inside the vertebral and carotid arteries.They also formed and arterial circle, which is located at the base of the brain.
Appointment cortex
studying human brain structure and function, we see that certain centers of the cerebral cortex are directly connected with certain processes in the body.Experiments on animals have shown that the centers do not have a clear functional distinction.During the experiments, it destroyed a certain part of the cerebral cortex, which is theoretically responsible for certain actions.This picture is often observed when the other part of the cortex takes on the function of the destroyed.This property is associated with high levels of cortical plasticity.Therefore, many scientists still deny the very concept of "centers".In general, modern science recognizes the fact that different areas of the cortex have a different purpose, but there is no strict separation between them.Data center areas are clusters of nuclei analyzer.In the peripheral areas have less cells perform specialized tasks.Certain parts of the cortex provide movement cutaneous and proprioceptive sensitivity, the ability to hear, see and other functions.
This is in general the structure of the human brain.
