The human brain is the central organ of the human nervous system, and with the spinal cord makes up the central nervous system. The brain consists of the cerebrum, the brainstem and the cerebellum. The cerebrum, the largest part of the human brain, consists of two cerebral hemispheres.It controls most of the activities of the body, processing, integrating, and coordinating the information it receives from the sense organs, and making decisions as to the instructions sent to the rest of the body. The brain is contained in, and protected by, the skull bones of the head.
There are three types of brain fore brain, midbrain,hindbrain.The hindbrain includes the upper part of the spinal cord, the brain stem, and a wrinkled ball of tissue called the cerebellum.Brains are made of soft tissue, which includes gray and white matter, containing the nerve cells, non-neuronal cells which help to maintain neurons and brain health, and small blood vessels. They have a high water content as well as a large amount nearly 60 percent of fat.
FUNCTION OF BRAIN:-
* Attention and concentration.
* Speaking (expressive language).
* planning and initiation.
* Awareness of abilities and limitations.
* Mental flexibility.
* Inhibition of behavior.
The human brain color physically appears to be white, black, and red-pinkish while it is alive and pulsating. The brain itself does not feel pain because there are no nociceptors located in brain tissue itself. This feature explains why neurosurgeons can operate on brain tissue without causing a patient discomfort, and, in some cases, can even perform surgery while the patient is awake.Brain controls vital functions such as breathing, swallowing, digestion, eye movement and heartbeat, there can be no life without it. But the rest of the brain is obviously capable of some remarkable feats, with one part able to compensate for deficiencies in another.