Main Model
6 Abductor pollicis brevis muscle
Abductor pollicis brevis
Proximal Attachment: Flexor retinaculum and tubercles of scaphoid and trapezium
Distal Attachment: Lateral side of base of proximal phalanx of thumb
Innervation: Recurrent branch of median nerve (C8, T1)
Main Action(s): Abducts thumb; helps oppose it