Flexor pollicis brevis in thumb MCP flexion
Flexor pollicis brevis
Related Anatomy
Nerve
Recurrent motor branch of the thumb
Deep branch (of ulnar nerve)
Median nerve
Ulnar nerve
Plexus
Brachial plexus
Muscle Group
Ulnar nerve - Thenar group
Median nerve - Thenar group
Muscle Action
Thumb metacarpalphalangeal joint flexion (moves thumb forward)
Nerve Root
T1
C8
Brachial Plexus Trunk
Lower trunk
Brachial Plexus Cord
Medial cord
Brachial Plexus Division
Anterior division