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Plantar Interossei Muscles
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| Plantar Interossei Muscles | |
|---|---|
| Muscle Type | |
| Origin | Inferomedial shafts of 3rd , 4th and 5th metatarsals (single heads) |
| Insertion | Medial sides of bases of proximal phalanges with slips to dorsal extensor expansions of 3rd, 4th and 5th toes |
| Action | Adduct 3rd 4th and 5th toes to axis of 2nd toe, Assist lumbricals in extending interphalangeal joints while flexing metatarsal phalangeal joints |
| Synergists | |
| Antagonists | |
| Spinal innervation | |
| Peripheral Innervation | Deep branch of lateral plantar nerve (S2, 3) |
| Vasculature | |
