FLEXOR POLLICIS BREVIS
Origin
Flexor retinaculum and tubercle of trapezium
Action
Flexes MCP jnt of thumb
Insertion
Base of prox phalanx of thumb (via radial sesamoid)
Nerve
Recurrent (muscular) br of median N (C8, T1) (may also be from deep br of ulnar N (T1))
