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Table of Contents > Health Dictionary > Opponens digiti minimi

Opponens digiti minimi

Hypothenar muscle of the palm; its origin is the hamulus of the hamate bone and transverse carpal ligament; it inserts into the shaft of the fifth metacarpal; its action is to “cup” the palm, drawing the ulnar side of the hand toward the center of the palm; its nerve supply is the ulnar.