phrenic nerve(redirected from Internal respiratory nerve of Bell)
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phrenic nerve[′fren·ik ¦nərv]
A nerve, arising from the third, fourth, and fifth cervical (cervical plexus) segments of the spinal cord; innervates the diaphragm.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.