Extensor Digiti Minimi

Origin Lateral epicondyle of humerus
Insertion Extensor expansion of 5th digit
Action Extends 5th digit at metacarpophalangeal and interphalangeal joints
Innervation Posterior interosseous nerve (C7 and C8), the continuation of the deep branch of the radial nerve (C7, C8)
Arterial Supply Interosseous recurrent artery

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Muscle Atlas of the Extremities