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long abductor muscle of thumb

long abductor muscle of thumb definition - medical

long abductor muscle of thumb

noun
A muscle with origin from the posterior surfaces of the radius and the ulna, with insertion to the base of the first metacarpal bone, with nerve supply from the radial nerve, and whose action abducts the thumb and assists in extending it.

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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