a network of nerves branching from the spinal nerves of the neck region and innervating the neck, chest, diaphragm, and part of the face.
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Medicine definitions for cervical plexus
A plexus that lies beneath the sternocleidomastoid muscle, is formed by loops joining the anterior branches of the first four cervical nerves, receives communicating branches from the superior cervical ganglion, and sends out many cutaneous, muscular, and communicating branches.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.