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Bassett Collection of Stereoscopic Images of Human Anatomy

Dorsal aspect of hand

Extensor tendons, close-up view of right hand

Image #109-3

KEYWORDS: Fascia ligaments and tendons, Hand and fingers.

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Dorsal aspect of hand
Extensor tendons, close-up view of right hand
The investing layer of deep fascia has been removed from the back of the hand with the exception of two bands (4) which are distinctly heavier than the other areas of the fascia. The proximal one of these bands is continuous with the dorsal carpal ligament.
1 . Superficial branch of radial nerve
2 . Dorsal carpal ligament (compartments for extensor tendons visible deep to ligament)
3 . Articular branch of superficial branch of radial nerve (cut)
4 . Dorsal fascia of the hand
5 . Extensor pollicis longus muscle (tendon of insertion)
6 . Branch dorsal metacarpal artery I
7 . Dorsal metacarpal artery II
8 . Dorsal interosseous muscle I (fascia removed)
9 . Metacarpal II (covered by periosteum)
10 . Extensor indicis muscle (tendon of insertion)
11 . Junctural tendon
12 . Dorsal digital artery
13 . Small junctural tendon from common extensor digitorum muscle to fifth finger (frequently a distinct tendon of the extensor digitorum passes to the fifth finger)
14 . Common extensor digitorum muscle (tendons of insertion)
15 . Extensor digiti minimi muscle
16 . Sheath of common extensor digitorum muscle
17 . Abductor digiti minimi muscle
18 . Dorsal hand branch of ulnar nerve
19 . Position of styloid process of ulna