Skip to Content

dorsal interossei (interosseous muscles) of hand

 

Definition: four intrinsic muscles of the hand; origin, sides of adjacent metacarpal bones; insertion, proximal phalanges and extensor expansion, first on radial side of index, second on radial side of middle finger, third on ulnar side of middle finger, fourth on ulnar side of ring finger; action, abduct fingers 2–4 from the axis of the middle finger, nerve supply, ulnar.

Synonym(s): musculi interossei dorsalis manusTA

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.

Hide