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M. opponens digiti minimi (Hand)
Opponor of the little finger; works together with the opponor of the pollex on the palm.
Origin: Retinaculum flexorum and hook of the hamate bone
Attachment: Medial side of the metacarpal bone V
Innervation: Ramus profundus of nervus ulnaris from Plexus brachialis (C8 and Th1)
Antagonists:
Movement: Fixation of the little finger