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subclavian ansa

[sŭb-klā′vē-ən]
n.
  1. The cord that connects the middle and cervical stellate sympathetic ganglions and forms a loop around the subclavian artery.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.