extensor digiti minimi (muscle)
muscle of posterior (extensor) compartment of forearm; origin, lateral epicondyle of humerus; insertion, dorsum of proximal, middle, and distal phalanges of little finger; action, extends little finger; nerve supply, radial (posterior interosseous).Synonym(s): musculus extensor digiti minimiTA, extensor (muscle) of little finger, musculus extensor digiti quinti proprius, musculus extensor minimi digiti
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