KIN 2500 Study Guide - Final Guide: Postganglionic Nerve Fibers, Autonomic Ganglion, Autonomic Nervous System

• School: LSU
• Department: Kinesiology: Professional Courses/Basic Activity Courses
• Course: KIN 2500
• Professor: Wanda Hargroder

Document Summary

Introduction: ans regulates cardiac, smooth muscle, and glandular tissue, what makes up the autonomic nervous system (ans), autonomic sensory neurons in visceral organs and in blood vessels that convey information to. Centers in the hypothalamus and the brain stem do regulate ans reflexes, so it is not completely self-governing. Ex. chemoreceptors that monitor blood co2 level and mechanoreceptors that detect the degree of stretch in the walls or organs or blood vessels. Sensory signals not consciously perceived most of the time. Involuntary and unconscious: autonomic neurons regulate visceral activities, regulate by either increasing (exciting) or decreasing (inhibiting) activities in their effector tissues (cardiac muscle, smooth muscle, glands) Cell body: autonomic ganglion contains the cell body of the postganglionic neuron, postganglionic neuron the cell body of the second neuron; located in the autonomic ganglion. Its unmyelinated extends directly from the ganglion to the effector. In some autonomic pathways, the preganglionic neuron extends to specialized cells of the adrenal medulla.