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MT Ch. 9

Essentials of Medical Terminology - Ch. 9

2 parts to the nervous system central nervous systems (CNS) & peripheral nervous system (PNS)
CNS consists spinal cord (body info superhighway) & the brain (information-processing center
PNS consists of sensory & motor nerves
neurons cells of the nerves
sensory neurons detect external & internal environmental influences and carry sensory impulses about those influences to the brain
motor impulses motor neurons carry messages from the brain to various part of the body
nervous system has sensory, integrative, & motor functions
sensory function work of sensory neurons
integrative function analytical process is very complex
motor function takes over when the brain has decided that a response is needed
brain receives a sensory impulse det. what sort of reaction is needed
motor impulses is sent thru the motor neurons to the skeletal muscles, or to an organ (heart), or to a gland
nervous tissue consists neurons & neuroglia
Created by: ltravis