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Abductor pollicis brevis muscle
Muscle of the thumb / From Wikipedia, the free encyclopedia
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This article uses anatomical terminology.
The abductor pollicis brevis is a muscle in the hand that functions as an abductor of the thumb.
Quick Facts Details, Origin ...
Abductor pollicis brevis muscle | |
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![]() Superficial muscles of the left hand, palmar view | |
Details | |
Origin | Transverse carpal ligament, the scaphoid and trapezium[1] |
Insertion | Base of the proximal phalanx of thumb |
Artery | Superficial palmar arch |
Nerve | Recurrent branch of the median nerve |
Actions | Abduction of the thumb by acting across the carpometacarpal joint and the metacarpophalangeal joint. It also assists in opposition and extension of the thumb. |
Antagonist | Adductor pollicis muscle |
Identifiers | |
Latin | musculus abductor pollicis brevis |
TA98 | A04.6.02.054 |
TA2 | 2521 |
FMA | 37373 |
Anatomical terms of muscle |
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