| 1
.
| Osteofibrous compartment for abductor pollicis longus and extensor pollicis brevis muscles |
| 2
.
| Ulna |
| 3
.
| Anterior interosseous artery |
| 4
.
| Antebrachial interosseous membrane |
| 5
.
| Radius |
| 6
.
| Pronator teres muscle (insertion) |
| 7
.
| Dorsal interosseous artery |
| 8
.
| Supinator muscle (deep part) |
| 9
.
| Biceps brachii muscle (tendon of insertion) |
| 10
.
| Bursa bicipitoradialis |
| 11
.
| Cubital joint capsule |
| 12
.
| Brachialis muscle (insertion) |
| 13
.
| Dorsal recurrent ulnar artery |
| 14
.
| Ulnar artery |
| 15
.
| Pronator quadratus muscle (remnant of distal part of muscle) |
| 16
.
| Distal radioulnar joint capsule |
