The functions of the nervous system are presented. Detect stimuli, initiate appropriate responses, organize, store, and use information to maintain homeostasis. Terms used are defined and explained in detail. Stimuli, external environmental changes, internal environmental changes, responses, immediate and long term use of stored information. Indicate that the N.S. is only one of the regulatory systems in organisms, the other being the endocrine system. Outline the nervous system into the central nervous system and the peripheral nervous system, and differentiate the two anatomically.