Anatomy - Extensor carpi radialis longus muscle
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Extensor carpi radialis longus - Insertion
Base of the second metacarpal (dorsal surface)
Extensor carpi radialis longus - Action
Extension of the wrist, abduction of the wrist, weak flexion of the elbow, weak pronation to neutral from a fully supinated position
Extensor carpi radialis longus - Origin
Lower third of lateral supracondylar ridge of humerus and lateral epicondyle of the humeral
Extensor carpi radialis longus - Innervation
Radial nerve (C6, C7)
