Abductor pollicis longus

Muscles · Latin: Abductor longus pollicis

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In human anatomy, the abductor pollicis longus (APL) is one of the extrinsic muscles of the hand.

Its major function is to abduct the thumb at the wrist.

Its tendon forms the anterior border of the anatomical snuffbox.

Definition from Wikipedia, CC BY-SA 4.0.