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Medical Term:

abductor pollicis brevis (muscle)


Definition: superficial thenar muscle origin, tubercle of trapezium and flexor retinaculum; insertion, lateral side of proximal phalanx of thumb; action, abducts thumb; nerve supply, median.

Synonym(s): musculus abductor pollicis brevisTA, short abductor muscle of thumb

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