Peripheral nervous system (PNS).Sensory receptors a responsive to external and internal stimuli.Such sensory input is conveyed to integration centers.Where in the input is interpreted an associated with a response.Motor output is the conduction of signals from integration centers to effector cells.Effector cells carry out the body’s response to a stimulus.The central nervous system (CNS) is responsible for integration.The signals of the nervous system are conducted by nerves