ANP 1106 Study Guide - Midterm Guide: Autonomic Nervous System

• School: University of Ottawa
• Department: Anatomy and Physiology
• Course: ANP 1106
• Professor: Joanne Savory

Document Summary

Make adjustments to ensure opimal support for body aciviies. Have viscera as most of their efectors (viscera = stomach, intesine, liver, spleen, pancreas, kidney etc ) The preganglionic (irst) neuron has a lightly myelinated axon and extends to a ganglion. The postganglionic (second) neuron is unmyelinated and extends to an efector organ. Axons of the ans are a two-neuron chain. A ganglion is a collecion of neuronal cell bodies in the periphery (except for the cns basal ganglion) The sympatheic mobilizes the body during extreme situaions. The parasympatheic performs maintenance aciviies and conserves body energy. *adrenal gland is the only one sympatheic that is directly innervated. **sympatheic: short preganglionic neuron, synapse to long postganglionic neuron. **parasympatheic: long preganglionic neuron, synapse to short postganglionic neuron. The sympatheic division is the ight-or-light system, involving e-aciviies (exercise, excitement, emergency, embarrassment) Promotes adjustments during exercise: blood low to organs is reduced, low to muscles is increased.