PLANTAR INTEROSSEI
| ORIGIN Inferomedial shafts of 3rd , 4th and 5th metatarsals (single heads) |
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| INSERTION Medial sides of bases of proximal phalanges with slips to dorsal extensor expansions of 3rd, 4th and 5th toes |
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| ACTION Adduct 3rd 4th and 5th toes to axis of 2nd toe, Assist lumbricals in extending interphalangeal joints while flexing metatarsal phalangeal joints |
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| NERVE Deep branch of lateral plantar nerve (S2,3) |