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Bassett Collection of Stereoscopic Images of Human Anatomy

Volar aspect of right hand

Tendon sheath of flexor pollicis longus muscle; branches of ulnar nerve to flexor pollicis brevis muscle

Image #102-5

KEYWORDS: Fascia ligaments and tendons, Hand and fingers, Neuralnetwork, Vasculature.

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Higher resolution images are available for a fee. Contact Drew Bourn, PhD, MLIS.

Volar aspect of right hand
Tendon sheath of flexor pollicis longus muscle; branches of ulnar nerve to flexor pollicis brevis muscle
The specimen has been turned to show the medial side of the thumb. The abductor pollicis brevis (3), flexor pollicis brevis (4,6) and opponens pollicis (7) muscles have been reflected in various ways. Air has been injected into the synovial sheath (8) of the flexor pollicis longus.
1 . Proper palmar digital nerves of median nerve
2 . Ligament of digital sheath I
3 . Abductor pollicis brevis muscle (reflected)
4 . Flexor pollicis brevis muscle (portion of muscle which inserts with abductor pollicis brevis muscle)
5 . Muscular branch of ulnar nerve (to flexor pollicis brevis muscle)
6 . Left pointer: Muscular branch of ulnar nerve (to flexor pollicis brevis muscle) Right pointer: Flexor pollicis brevis muscle (superficial head)
7 . Opponens pollicis muscle
8 . Tendon sheath of flexor pollicis longus muscle
9 . Metacarpotrapezial joint capsule
10 . Palmar aponeurosis
11 . Transverse carpal ligament
12 . Ulnar artery
13 . Ulnar nerve
14 . Median artery (large)
15 . Anterior common digital artery (to thumb and index finger)
16 . Adductor pollicis muscle
17 . Lumbrical muscle I
18 . Left pointer: Position of metacarpophalangeal joint of fifth finger Right pointer: Abductor digiti minimi muscle

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