The nervous system transmits and controls signals between the brain and the rest of the body, both internally and externally, so we can say that the nervous system controls the capacity of the organism of moving, breathing, thinking, reacting to external stimuli, and more. The basic unit of the nervous system are neurons constituted by axons and dendrites, on axons the nervous impulse is released meanwhile on the dendrites the impulse is received. Mainly the nervous system can be dived into two categories, the nervous central system, and the peripheral nervous system, the first one comprehends the brain and the spinal cord and is integrated as a processing center for the whole nervous system, meanwhile the peripheral nervous system compreghends or the nerverves