Description
The thenar muscles are one of five groups of intrinsic muscles in the hand. These muscles mainly act to:
- flex the thumb at its metacarpophalangeal and carpometacarpal joints;
- abduct the thumb at its carpometacarpal joint;
- oppose the thumb towards the fingers.
The thenar muscles consist of the:
- abductor pollicis brevis;
- flexor pollicis brevis;
- opponens pollicis.
All three muscles form the thenar eminence, which is found on the lateral side of the palm and are found in the thenar compartment of the hand.
Related parts of the anatomy
