Dorsal interossei muscles
The Interossei dorsales. Left foot.
Latin	musculi interossei dorsalis pedis
Gray's	subject #131 495
Origin
Insertion
Artery
Nerve	plantar nerve
Actions	abduct toes
Antagonist	Plantar interossei muscles

The dorsal interossei, four in number, are situated between the metatarsal bones.

They are bipenniform muscles, each arising by two heads from the adjacent sides of the metatarsal bones between which it is placed; their tendons are inserted into the bases of the first phalanges, and into the aponeurosis of the tendons of the Extensor digitorum longus.

In the angular interval left between the heads of each of the three lateral muscles, one of the perforating arteries passes to the dorsum of the foot; through the space between the heads of the first muscle the deep plantar branch of the dorsalis pedis artery enters the sole of the foot.

The first is inserted into the medial side of the second toe; the other three are inserted into the lateral sides of the second, third, and fourth toes.

[edit] See also

• Palmar interossei muscles
• Plantar interossei muscles

[edit] Additional images

Bones of the right foot. Dorsal surface.

[edit] External links

• 597295162 at GPnotebook
• dorsal+interossei+%28interosseous+muscles%29+of+foot at eMedicine Dictionary

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This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained within it may be outdated.