corrugator muscle

corrugator muscle definition - medical

corrugator muscle

noun
A muscle with origin from the orbital portion of the orbicular muscle, with insertion to the skin of the eyebrow, with nerve supply from the facial nerve, and whose action draws the medial end of the eyebrow downward and wrinkles the forehead vertically.

The American Heritage® Medical Dictionary Copyright © 2009 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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