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extensor digiti minimi (extensor digiti quinti proprius)
Muscle of posterior compartment of forearm.
Origin: lateral epicondyle of humerus
Insertion:
-> dorsum of proximal, middle & distal phalanges of 5th finger
Action: extends 5th finger
Innervation: radial nerve (posterior interosseous nerve)
General
skeletal muscle (voluntary muscle)
References
Stedman's Medical Dictionary 27th ed, Williams &
Wilkins, Baltimore, 1999
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