Volar aspect of right hand

Nerve supply to opponens pollicis muscle

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Image #102-4
Bassett ImageDiagram Image
Legend Image
Volar aspect of right hand
Nerve supply to opponens pollicis muscle
The superficial head of the flexor pollicis brevis muscle (3) has been cut from its origin and reflected distally. A thin slip of this muscle appears to be closely related to the abductor pollicis brevis. The opponens pollicis (4) has been divided at its origin and retracted laterally. Filaments of the recurrent muscular branch of the median nerve ramify within the muscle.
1 . Abductor pollicis brevis muscle (reflected distally)
2 . Lumbrical muscle
3 . Flexor pollicis brevis muscle (superficial head, reflected distally)
4 . Opponens pollicis muscle (reflected laterally)
5 . Tendon sheath of flexor pollicis longus muscle
6 . Muscular branch of median nerve (to opponens pollicis muscle)
7 . Volar carpal ligament (reflected laterally)
8 . Transverse carpal ligament
9 . Ulnar artery
10 . Palmar aponeurosis (cut)
11 . Common palmar digital arteries