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Dorsal interossei of the foot
Musculi interossei dorsalis (pes)
Latin muscle parts
Foot muscle – plantar group – fourth layer
This muscle’s name in English is the muscle between the bones on the back of the foot. Interossei comes from the Latin terms inter meaning “between” and os meaning “bone.”The word dorsalis is from the Latin dorsum for “back.”
Two headed bipennate muscles that attach to the adjacent surfaces of all the metatarsal bones.
Sides of the bases of the proximal phalanges and the extensor expansion of the toes 2, 3, and 4; they attach to both sides of the second toe and to the lateral side of toes three and four.
Abduction of digits 2, 3, and 4; extension of the interphalangeal joints.
Lateral plantar nerve (S2 and S3)
The muscle is supplied by the lateral tarsal arteries, the medial tarsal arteries, the first to fourth plantar and dorsal metacarpal arteries, and the dorsal digital arteries.