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Medical Term:

abductor pollicis longus (muscle)


Definition: outcropping muscle of posterior compartment of forearm; origin, interosseous membrane and posterior surfaces of radius and ulna; insertion, lateral side of base of first metacarpal bone; action, abducts and assists in extending thumb; nerve supply, radial.

Synonym(s): musculus abductor pollicis longusTA, long abductor muscle of thumb, musculus extensor ossis metacarpi pollicis

© Copyright 2016 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.