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Anatomy Atlases: Illustrated Encyclopedia of Human Anatomic Variation: Opus III: Nervous System: Plexuses: Posterior Interosseous Nerve

Illustrated Encyclopedia of Human Anatomic Variation: Opus III: Nervous System: Plexuses

Posterior Interosseous Nerve

Ronald A. Bergman, PhD
Adel K. Afifi, MD, MS
Ryosuke Miyauchi, MD

Peer Review Status: Internally Peer Reviewed

The posterior interosseous nerve may pass over instead of perforating the supinator muscle. It may supply the anconeus muscle, extensor carpi radialis brevis (36% of cases), and the opposed surfaces of the middle and index fingers. The posterior and anterior interosseous nerves sometimes communicate.


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