Updated: 12/30/2021

Opponens digiti minimi

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  • Summary
    • Opponens digiti minimi
      Origin
      Hook of hamate and flexor retinaculum
      Insertion
      Medial border of 5th metacarpal
      Action
      Draws 5th metacarpal anteriorly and rotates it, bringing little finger (5th digit) into opposition with thumb
      Innervation
      Deep branch of ulnar nerve (C8, T1)
      Arterial supply
      Ulnar artery

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