Description of Brain

The brain consists of two hemisphere with cleavage between them. The larger brain contains grey matter. It is covered with a layer of grey matter on all sides, forming nodes. Its upper part is covered with a membrane made of capillaries. Brain is the name given to this collective structure. Scientists state that a part of the brain passes through the neck and the spinal cord to the waist. It has 12 pairs of nerves radiating to all parts of the body. One part of the brain houses memory, desire, intellect and so on. If this part of the brain is damaged in any way, the ability of man to carry out mental functions will be considerably reduced.

From the lower part of the brain issue 12 pairs of nerves.One of them is known as cranial nerve. Every pair in the body conveys message to sense organs. One pair conveys the sense of smell while other pairs convey the sense of sight, sense of sound, sense of taste etc. There are other nerves, which control the movement of eyeball, the movement of the face muscles. There are other nerves which send signals to the throat, heart and abdomen and to the gall bladder. There is still another pair, which activates the muscles which comes into play to assist articulation.