- Click here for access to the full Anatomy Glossary.
- Right click on the image for a downloadable file of this muscle.
- Use of this artwork requires proper credit to be given (Permission: Dr. Joe Muscolino. www.learnmuscles.com – art work Giovanni Rimasti)
The Adductor Pollicis has two heads: Oblique head and Transverse head.
- The adductor pollicis attaches from the third metacarpal to the proximal phalanx of the thumb.
- The oblique head attaches onto the second and third metacarpals.
- The transverse head attaches onto only the third metacarpal.
- The adductor pollicis also attaches distally into the dorsal digital expansion.
- Adducts the thumb at the carpometacarpal joint.
- Flexes the thumb at the carpometacarpal and metacarpophalangeal joints.
NOTE: There is a sesamoid bone located in the distal tendon of the oblique head of the adductor pollicis.