Dorsal Interossei


Summary

Location: Between the metacarpal bones on the back of the hand, abducting the fingers.

Information

Group: Wrist and Hand
Side(s) of body: Back
Function/action: Finger Abductor, Metacarpophalangeal Flexor, Interphalangeal Extensor

Details

Joint: Metacarpophalangeal
Bone: Metacarpals
Origin: Adjacent sides of metacarpal bones.
Insertion: Proximal phalanges and extensor expansions of fingers.