1
.
| Extensor pollicis brevis muscle |
2
.
| Extensor carpi radialis longus muscle (tendon) |
3
.
| Extensor carpi radialis brevis muscle (tendon) |
4
.
| Extensor pollicis longus muscle (tendon) |
5
.
| Branches of dorsal metacarpal artery I |
6
.
| Dorsal interosseous muscle I |
7
.
| Metacarpal II |
8
.
| Extensor indicis muscle (tendon) |
9
.
| Junctural tendon |
10
.
| Dorsal interosseous muscle IV |
11
.
| Common extensor digitorum muscle (tendons) |
12
.
| Extensor carpi ulnaris muscle (tendon) |
13
.
| Dorsal carpal ligament (cut to open compartments containing extensor tendons) |
14
.
| Left pointer: Styloid process of ulna Right pointer: Extensor digiti minimi muscle (tendon) |