Abductor Pollicis Brevis
Abductor Pollicis Brevis
☆Abductor Pollicis Brevis
MusclePro
Anatomy
- Origin
Tubercle of scaphoid, tubercle of trapezium, flexor retinaculum (transverse carpal ligament).
- Insertion
Base of proximal phalanx of thumb.
- Nerve
Median (C8, T1).
- Actions
Abducts thumb and moves it anteriorly, acts together with other muscles of thenar eminence to oppose thumb to other fingers.
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