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  • synonyms

elevator muscle of upper lip

n.
  1. A muscle with origin from the maxilla below the infraorbital foramen, with insertion to the orbicular muscle of the upper lip, with nerve supply from the facial nerve, and whose action elevates the upper lip.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.