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Updated: 12/28/2021

Adductor Pollicis

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  • Summary
      • Adductor Pollicis
      • Origin
      • Oblique head: bases of 2nd and 3rd metacarpals, capitate, and adjacent carpals;
      • Transverse head: anterior surface of the body of 3rd metacarpal
      • Insertion
      • Medial side of base of proximal phalanx of thumb
      • Action
      • Draws 1st metacarpal laterally to oppose thumb toward center of palm and rotates it medially
      • Innervation
      • Deep branch of ulnar nerve (C8, T1)
      • Arterial supply
      • Deep palmar arterial arch

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