Bassett Collection of Stereoscopic Images of Human Anatomy

Volar aspect of forearm

Pronator quadratus muscle; origins of deep layer of flexor muscles

Image #99-4

KEYWORDS: Forearm, Vasculature.

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Volar aspect of forearm

Pronator quadratus muscle; origins of deep layer of flexor muscles

The flexor pollicis longus and flexor digitorum profundus muscles have been removed. Short ends of muscle fibres remain in the areas of origin of these muscles (6,15).

1 .	Radial artery
2 .	Sheath of common tendon of flexor muscles (opened)
3 .	Pronator quadratus muscle
4 .	Radius
5 .	Brachioradialis muscle (tendon of insertion)
6 .	Flexor pollicis longus muscle (area of origin)
7 .	Anterior interosseous nerve
8 .	Left pointer: Flexor digitorum superficialis (radial head) Right pointer: Pronator teres muscle (insertion)
9 .	Anterior interosseous artery
10 .	Nutritive artery of radius
11 .	Dorsal interosseous artery
12 .	Supinator muscle
13 .	Dorsal recurrent ulnar artery
14 .	Ulnar artery
15 .	Flexor digitorum profundus muscle (area of origin)
16 .	Ulna
17 .	Antebrachial interosseous membrane