Opponens digiti minimi muscle

Last revised by Dr 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.

Summary

  • 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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