Principles of Anatomy and Physiology
16th Edition
ISBN: 9781119662792
Author: Tortora, Gerard J., DERRICKSON, Bryan H.
Publisher: WILEY
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Chapter 15, Problem 3CP
Summary Introduction
To review:
The reason as to why the sympathetic division of the autonomic nervous system (ANS) is called the thoracolumbar division even when it extends to the sacral region from the cervical region.
Introduction:
Each and every division of the ANS is composed of two motor neurons. The first motor neuron has the cell body in the spinal cord or the brain and is called preganglionic neuron. The axon of this neuron exits the central nervous system (CNS) and extends to the autonomic ganglion. The second neuron is known as postganglionic neuron that synapses with the preganglionic neuron and extends till the visceral effector.
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