Plantar interossei muscles
Musculi interossei plantares
- Latin synonym: Musculi interossei plantares I-III
- Synonym: Plantar interossei muscles 1-3
- Related terms: Plantar interossei
Definition
Origin: Metatarsals
Insertion: Proximal phalanges
Nerve: Plantar nerve
Action: Adduct toes
Antagonist: Dorsal interossei of the foot
Description:
The Interossei in the foot are similar to those in the hand, with this exception, that they are grouped around the middle line of the second digit, instead of that of the third.They are seven in number, and consist of two groups, dorsal and plantar.
The Interossei plantares (Plantar interossei), three in number, lie beneath rather than between the metatarsal bones, and each is connected with but one metatarsal bone. They arise from the bases and medial sides of the bodies of the third, fourth, and fifth metatarsal bones, and are inserted into the medial sides of the bases of the first phalanges of the same toes, and into the aponeuroses of the tendons of the Extensor digitorum longus.
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