extensor digitorum brevis

[ dĭj′ĭ-tôrəm brĕvĭs ]

n.

A muscle with its origin from the dorsal surface of the calcaneus, with insertion by four tendons to those of the long extensor muscle of the toes and by a slip to the base of the proximal phalanx of the big toe, with nerve supply from the deep peroneal nerve, and whose action extends the toes.

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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.