Supinator

Description

Supinator musclie in both supination and pronation

Supinator

Name

• Supinator
• Musculus supinator
• Supinator Muscle
• Supinator forearm muscle

General

• Broad muscle in the posterior forearm
• Responsible for rotating the radius laterally, bringing it into supination

Origin

• Proximal Ulna (supinator crest)
• Lateral epicondyle of Humerus
• Radial collateral ligament
• Annular ligament

Insertion

• Proximal 1/3 of the Radius (anterolateral and posterior surfaces)

Actions

• Supination of forearm

Vascular Supply

• Radial Recurrent Artery

Innervation

• Radial Nerve (C5-C6)

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Clinical Significance

• Radial Tunnel Syndrome

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See Also

• Physical Exam Forearm
• Forearm Anatomy (Main)
• Forearm Pain (Main)
• Physical Exam Elbow
• Elbow Anatomy (Main)
• Elbow Pain (Main)

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