Posterior Compartment of the Forearm

Description

Superficial dorsal compartment

Deep dorsal compartment

Names

• Posterior Compartment of the Forearm
• Extensor compartment
• Dorsal compartment of the forearm

General

• Generally considered the extensor compartment
• Contains 12 muscles which primarily extend the wrist and fingers
• All muscles here are innervated by the radial nerve
• Can be divided into superficial and deep
• Separated from the Anterior Compartment of the Forearm by the Interosseous Membrane of Forearm

Superficial Dorsal Compartment of the Forearm

• Extensor Digitorum
• Extensor Digiti Minimi
• Extensor Carpi Ulnaris
• Anconeus
• Brachioradialis
• Extensor Carpi Radialis Longus
• Extensor Carpi Radialis Brevis

Deep Dorsal Compartment of the Forearm

• Abductor Pollicis Longus
• Extensor Pollicis Brevis
• Extensor Pollicis Longus
• Extensor Indicis
• Supinator

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Clinical Significance

• Chronic Exertional Compartment Syndrome
• Forearm Pain Main

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See Also

• Forearm Pain Main
• Forearm Anatomy Main
• Physical Exam Wrist

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