Volar aspect of forearm

Nerve supply to pronator quadratus muscle

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Image #99-6

Volar aspect of forearm

Nerve supply to pronator quadratus muscle

The muscle has been reflected medially from its insertion.

1. Brachioradialis muscle
2. Anterior interosseous nerve
3. Anterior interosseous artery
4. Radius
5. Area of insertion of pronator quadratus muscle
6. Dorsal carpal ligament (pointer on compartment for abductor pollicis longus and extensor pollicis brevis muscles)
7. Anterior carpal branch radial artery
8. Radial artery
9. Superficial anterior branch radial artery
10. Flexor carpi radialis muscle (tendon)
11. Carpal sulcus (pointer on anterior radiocarpal ligament)
12. Pronator quadratus muscle (reflected medially)
13. Antebrachial interosseous membrane
14. Ulna
15. Flexor digitorum profundus muscle (area of origin)