PS101 Chapter Notes - Chapter 4: Cochlea, Retina, Cardiac Arrhythmia
Document Summary
Function: gather & process info, produce responses to stimuli, and coordinate the workings of different cells. The central nervous system (cns): receives, processes, interprets and stores incoming sensory information about tastes, sounds, smells, colour, pressure on skin, state of internal organs, etc. sends it to muscles, organs. Sends messages for muscles, glands & internal organs. The peripheral nervous system (pns): contains all portions of the nervous system outside the brain & spinal cord and handles the central nervous system"s input/output: somatic nervous system aka skeletal nervous system. Subdivision of pns that connects to sensory receptors & skeletal muscles. Consists of nerves connected to sensory receptors. Sensory nerves: responsible for the intake of sensation & sending them to cns they carry messages from special receptors in internal/external sense organs which put us in touch with outside world and bodily activity. Motor nerves: carry orders from cns to muscles, glands, and internal organs (interchange)
