Thenar eminence

The thenar eminence is the muscular bulge on the radial side of the palm due to the thenar muscles. They are innervated by median nerve, except FPB which also provided by ulnar nerve. Together the muscle group primarily acts to oppose the thumb. The four muscles are:

​The adductor pollicis is not part of thenar muscles and also innervated by ulnar nerve rather than median nerve.

History and etymology

Thenar (θέναρ) is the Greek word for palm of the hand.

Anatomy: Upper limb
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Article information

rID: 61892
Section: Anatomy
Synonyms or Alternate Spellings:
  • thenar group
  • thenar muscles

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