Posterior compartment of the forearm

Dr Daniel J Bell and Dr Henry Knipe et al.

The forearm is divided into the posterior compartment and the anterior compartment by the deep fascia, lateral intermuscular septum and the interosseous membrane between the ulna and radius

The posterior compartment of the forearm contains 11 muscles, divided into deep and superficial layers.

The anconeus is sometimes considered part of the posterior compartment of the forearm rather than part of the posterior compartment of the arm.

Anterior and posterior interosseous arteries, which are branches of the short common interosseous artery arising from the proximal ulnar artery.

All muscles in the extensor compartment are supplied by the radial nerve.

Anatomy: Upper limb

Anatomy: Upper limb

Article information

rID: 23279
Section: Anatomy
Synonyms or Alternate Spellings:

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