extensor digiti minimi (muscle)
ex·ten·sor di·gi·ti mi·ni·mi (mus·cle)
[TA]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).