Opponens Digiti Minimi

Written by Oliver Jones

Last updated October 13, 2022 • 2 Revisions

The opponens digiti minimi is a hypothenar muscle located within the hand. It lies deep to the other hypothenar muscles.

  • Attachments: Originates from the hook of hamate and associated flexor retinaculum. Inserts onto the medial margin of the fifth metacarpal
  • Actions: Opposition of the little finger
  • Innervation: Ulnar nerve.
  • Blood supply: Deep palmar arch

Figure 1
Superficial and deep layers of the hypothenar muscles

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