Control Mechanisms: Endocrine System and Autonomic Nervous System

Abstract

The body’s cells require a stable internal environment in which to carry out their functions despite variations in the external environment to which the body is exposed. The maintenance of a stable internal environment is accomplished by complex regulatory devices involving the endocrine system and the autonomic subdivision of the nervous system. Not only do these systems function to maintain homeostasis, but they also permit the individual to respond quickly to the requirements for increased energy use when the situation demands mobilization of the body’s resources.