Adductor pollicis muscle
The adductor pollicis muscle is a large triangular muscle anterior to the plane of the interossei that crosses the palm of the hand. It is deep to the thenar eminence, forming part of the short muscles of the thumb, and the intrinsic muscles of the hand.
- insertion: base of proximal phalanx and extensor hood of thumb
- action: adducts thumb
- arterial supply: deep palmar arch
- innervation: deep branch of ulnar nerve
The oblique head is also called the adductor obliquus pollicis muscle and the transverse head - the adductor transversus pollicis muscle.