Chapter 14.4, Problem 6CYU

Summary Introduction

To review:

Whether short preganglionic fibers, terminal ganglia, collateral ganglia, origin from the thoracolumbar region of the spinal cord, and innervates adrenal medulla are the characteristic feature of sympathetic or parasympathetic nervous system.

Introduction:

The ANS (autonomic nervous system) is comprised of two units that are the parasympathetic nervous system and SNS (sympathetic nervous system). ANS is involuntary control of the body tissues. The spinal cord comprises 31 pairs of segments and is important because the sympathetic and parasympathetic nerves arise from them.