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phrenic nerve in Medicine

phrenic nerve

n.
  1. A nerve that arises mainly from the fourth cervical nerve and is primarily the motor nerve of the diaphragm but also sends sensory fibers to the pericardium.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.