Outline the functions of the nervous system. Detection of changes in the external and internal environment, Define these changes as stimuli. Equate stimuli with an appropriate response and discuss the process as a stimulus-response reaction. Show how the nervous system also organizes, and stores, the information to maintain homeostasis. Divide the system into both the central nervous system and the peripheral nervous system. Show the relationship of both using a diagram. Briefly outline the major parts of both systems. Using a diagram of a nerve, label how a nerve is composed of nerve bundles which are composed of nerve fibers, which are composed of neurons or nerve cells. From a diagram of a motor neuron, discuss the function of the cyton or soma (cell body) and the special function of the Schwann cells, myelin sheath, and neurolemma.