Basics of the Nervous System

The nervous system is like an old phone operator working at light speed with no breaks, ever.  It works to connect parts of the body to each other and relay information through specialized nerve cells.

The nervous system is sub-divided down depending on conscious or unconscious functions of affected areas of the body.  Initially it is divided into the Central and Peripheral nervous systems.  The central consisting of the brain and spinal cord.  It contain the majority of the nervous system and only has one direct contact with the outside environment (olfactory epithelium).  The Peripheral system contains all the nerves not associated with brain or spinal cord they are almost always in contact with the outside environment and work to communicate with the brain and spine to the rest of the body.