The nervous system is the body's information gatherer storage center and control system. Its overall functions are to collect information about the body's external/internal states and transfer this information to the brain to analyze this information and to send impulses out appropriate motor responses to meet the body's needs The system is composed of specialized cells termed nerve cells or neurons that communicate with each other and with other cells in the body Typically a given neuron is connected to many thousands of neurons. The specific point of contact between the axon of one cell and a dendrite of another is called a myelin which acts like an insulator and, along with the nodes and ranvier speeds impulse transmission
