Musculus opponens digiti minimi (hand)

Musculus opponens digiti minimi is a small triangular-shaped muscle of the hand that we would find hidden under m. abductor digiti minimi and m. flexor digiti minimi brevis. The name of the muscle does not quite match its function, as it performs adduction rather than opposition.

Beginning:
 * hamulus ossis hamati, ulnar part of retinaculum musculorum flexorum

Attachment:
 * ulnar side 5. metacarpus

Innervation:
 * ramus profundus nervi ulnaris

Function:
 * adduction of the little finger (oppositional influence is minimal)

Vascular supply:
 * ulnar artery

Related Articles

 * Muscles of the upper limb