Flexor pollicis brevis in thumb MCP flexion
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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