THE NERVOUS SYSTEM The skittish governing body regulates and coordinates the activities of all the new(prenominal) of the body. It enables the body to adjust to changes that occur at bottom it and in its surroundings. The nervous system is made up of countless establishment cells, or neurons. The neurons form a communications network that extends to any lead off of the body. The nervous system has three main divisions.
They are (1) the of import nervous system; (2) the peripheral nervous system, which includes the eyes, ears, nose and early(a) sense organs; (3) the involuntary nervous system.
Organs within in the system include the top dog which is an enormously abstruse collection of billions of neurons. These neurons are linked together in minute patterns that enable the brain to think and remember. The Spinal cord, Spinal nerve (31 pairs), Radial nerves, Median nerves, Ulnar nerve, Femoral nerve and sciatic nerve make up the nervous system. The nervous system relates to the other systems by being the control center of the body.
The primordial nervous system makes some simple decisions within the spinal anesthesia cord, such(prenominal) as directing the hand to pull out-of-door from a hot object. The central nervous system consists of the brain and spinal cord.
The peripheral nervous system is made up of nerves that connect the central nervous system with every part of the body. The motor neurons of the peripheral nervous system sway the instructions from the central nervous system to the appropriate tissues.
The autonomic nervous system carries messages from the subconscious level of the brain to the indwelling organs. The autonomic nervous system regulates the automatic function of the body, such as the beating of the heart and the movement of food through the digestive system.
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