Posterior compartment of the forearm
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| Posterior compartment of the forearm | |
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| Cross-section through the middle of the forearm. (Anterior compartment is at top; posterior compartment is at bottom.) | |
| Artery | radial artery, radial recurrent artery , profunda brachii, posterior interosseous artery |
| Nerve | radial nerve[1], posterior interosseous nerve |
The posterior compartment of the forearm contains the following muscles:
| Level | Muscle | E/I |
| (see below) | brachioradialis | I |
| superficial | extensor carpi radialis longus | E |
| superficial | extensor carpi radialis brevis | E |
| superficial | extensor carpi ulnaris | E |
| intermediate | extensor digitorum (communis) | E |
| intermediate | extensor digiti minimi (proprius) | E |
| deep | abductor pollicis longus | E |
| deep | extensor pollicis brevis | E |
| deep | extensor pollicis longus | E |
| deep | extensor indicis (proprius) | E |
| deep | supinator | I |
| deep | anconeus | I |
- "E/I" refers to "extrinsic" or "intrinsic".
The Brachioradialis, flexor of the forearm, is unusual in that it is located in the posterior compartment, but it is actually in the anterior portion of the forearm.
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