Opponens digiti minimi muscle

Last revised by Daniel J Bell on 21 Aug 2019

The opponens digiti minimi muscle is the deepest of the muscles within the hypothenar eminence, and is one of the intrinsic muscles of the hand.


  • origin: hook of hamate and flexor retinaculum
  • insertion: medial aspect of the 5th metacarpal
  • action: flexion and lateral rotation of the 5th metacarpal about the 5th carpometacarpal joint
  • arterial supply: ulnar artery
  • innervation: deep branch of ulnar nerve

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Cases and figures

  • Figure 1
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