Adductor pollicis muscle

The adductor pollicis muscle is a large triangular muscle anterior to the plane of the interossei that crosses the palm. It is the deepest muscle of the thenar eminence, and is one of the intrinsic muscles of the hand.


  • origin:
    • transverse head: 3rd metacarpal
    • oblique head: capitate and bases of 2nd and 3rd metacarpals
  • insertion: base of proximal phalanx and extensor hood of thumb
  • action: adducts thumb
  • arterial supply: deep palmar arch
  • innervation: deep branch of ulnar nerve

Anatomy: Upper limb

Anatomy: Upper limb

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Article information

rID: 45026
Section: Anatomy
Tag: cases, cases
Synonyms or Alternate Spellings:
  • Adductor pollicis muscles

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Cases and figures

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