Bassett Collection Large Image - Lane Medical Library, Stanford University Medical Center

Stanford holds the copyright to the David L. Bassett anatomical images and has assigned Creative Commons license Attribution-Share Alike 4.0 International to all of the images.
For additional information regarding use and permissions, please contact Dr. Drew Bourn at dbourn@stanford.edu.

Dorsal aspect of right forearm

Origins of deep layer of extensor muscles

1 .	Deep branch of radial nerve
2 .	Supinator muscle (insertion)
3 .	Dorsal interosseous artery
4 .	Abductor pollicis longus muscle (area of origin)
5 .	Radius
6 .	Antebrachial interosseous membrane
7 .	Extensor carpi radialis brevis muscle (tendon)
8 .	Extensor pollicis brevis muscle
9 .	Anterior interosseous artery
10 .	Dorsal interosseous nerve (terminal part)
11 .	Compartment for common extensor digitorum muscle and extensor indicis muscle
12 .	Dorsal carpal ligament
13 .	Compartment for extensor digiti minimi muscle
14 .	Compartment for extensor carpi ulnaris muscle
15 .	Ulna
16 .	Area of origin of extensor indicis muscle
17 .	Area of origin of extensor pollicis longus muscle