• synonyms

long flexor muscle of thumb

  1. A muscle with its origin from the radius, with insertion to a phalanx of the thumb, with nerve supply from the median palmar interosseous nerve, and whose action flexes the distal phalanx of the thumb.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.