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thoracic cardiac nerve in Medicine

thoracic cardiac nerve

n.
  1. Any of the branches from the second to the fifth segments of the thoracic sympathetic trunk that pass forward to enter the cardiac plexus.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.