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Bassett Collection of Stereoscopic Images of Human Anatomy

Dorsal aspect of right forearm

Nerve supply to abductor pollicis longus, extensor pollicis longus and extensor indicis proprius muscles

Image #108-3

KEYWORDS: Forearm, Neuralnetwork, Vasculature.

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

Dorsal aspect of right forearm
Nerve supply to abductor pollicis longus, extensor pollicis longus and extensor indicis proprius muscles
The muscles have been dissected to demonstrate the intramuscular course of branches of the deep branch of the radial nerve.
1 . Supinator muscle
2 . Radius
3 . Pronator teres muscle (insertion)
4 . Muscular branch of radial nerve (to abductor pollicis longus muscle)
5 . Abductor pollicis longus muscle (dissected)
6 . Extensor pollicis brevis muscle
7 . Extensor pollicis longus muscle (dissected)
8 . Left pointer: Muscular branch of radial nerve (to extensor indicis muscle) Right pointer: Extensor indicis muscle
9 . Dorsal interosseous (antibrachial) nerve (see 108-4)
10 . Muscular branch of radial nerve (to extensor pollicis brevis muscle)
11 . Muscular branch of radial nerve (to extensor pollicis longus muscle)
12 . Dorsal interosseous artery
13 . Ulna
14 . Recurrent interosseous artery