Summary Abductor Pollicis Brevis Origin Flexor retinaculum and tubercles of scaphoid and trapezium Insertion Lateral side of base of proximal phalanx of thumb Action Abducts thumb and helps oppose it Innervation Recurrent branch of median nerve (C8 and T1) Arterial Supply Superficial palmar branch of the radial artery
All Videos (0) Podcasts (1) Anatomy⎪Abductor Pollicis Brevis Anatomy - Abductor Pollicis Brevis Listen Now 2:34 min 2/4/2021 36 plays 0.0 (0)