PT 518 Study Guide - Quiz Guide: Autonomic Nervous System, Glossopharyngeal Nerve, Carotid Sinus

• School: Quinnipiac University
• Department: Physical Therapy
• Course: PT 518
• Professor: Kathleen Kelly

Document Summary

General: division of peripheral nervous system that controls homeostasis, consists of (some) cranial nerves, spinal nerves, and ganglion, subdivided into, autonomic (aka visceral motor system, somatic nervous system. Ans includes: autonomic afferents (sensory component, autonomic efferents (motor component) 2 subsystems, sympathetic nervous system, parasympathetic nervous system. Internal sensory data can come from variety of internal (visceral) receptors: enters cns via 2 routes, spinal cord via dorsal roots (drg) afferent tracts, brainstem via cn cn vii, ix, and x. Function of parasympathetic ns: energy conservation and storage, regulation of viscera, decrease hr and rr, decrease digestion, empty bowel/bladder, parasympathetic control in the head, production of tears, constrict pupil, mostly cn x, less of cn iii, vii, ix. Efferent pathways: regulation of autonomic functions is typically unconscious, normally, ans uses two neurons from brain to effector organ (vs skeletal muscles that use one, preganglionic fiber: cns ganglion, postganglionic fiber: ganglion effector organ. *ganglion = group of cell bodies (where data congregates)