dorsal interossei (interosseous muscles) of hand

(redirected from musculi interossei dorsalis manus)

dor·sal in·ter·os·se·i (interosseous mus·cles) of hand

[TA]
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.

dor·sal in·ter·os·se·i (in·ter·os·se·ous mus·cles) of hand

(dōr'săl in'tĕr-os'ē-ī in'tĕr-os'ē-ŭs mŭs'ĕlz hand) [TA]
Four intrinsic muscles of 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; action, abduct fingers 2-4 from axis of middle finger; nerve supply, ulnar.
Synonym(s): musculi interossei dorsales manus.