[PHS4300] - Final Exam Guide - Everything you need to know! (29 pages long)
30 Mar 2017
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The nervous system includes the cns and the pns. The pns includes nerves that link the sensory receptors to the cns and link the cns motor commands to the effectors. The cns includes pathways to deliver the motor commands from the networks for movement to the pns to act on the effectors. This motor division projects either to the somatic nervous system to control skeletal muscles or to the autonomic nervous system for the involuntary/automatic functions executed by the sympathetic and parasympathetic divisions on glands, smooth muscles and cardiac muscles. The cns i(cid:374)(cid:272)ludes the spi(cid:374)al (cid:272)o(cid:396)d a(cid:374)d the (cid:271)(cid:396)ai(cid:374) whi(cid:272)h itself is (cid:272)o(cid:373)posed of . All perception and voluntary movement derives from the cerebral cortex. To simplify the complex task of producing movements, the motor areas of the cerebral cortex get help from the cerebellum and basal ganglia. The brainstem and spinal cord have reflex circuits for automatic responses to sensory stimuli.
