accessory phrenic nerve
- Any of the accessory nerve strands that arise from the fifth cervical nerve, often as branches of the nerve to the subclavius, and pass downward to join the phrenic nerve.
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The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.