DORSAL INTEROSSEI (FOOT)
| ORIGIN Bipennate from inner aspects of shafts of all metatarsals |
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| INSERTION Bases of proximal phalanges and dorsal extensor expansions of medial side of 2nd toe and lateral sides of 2nd , 3rd and 4th toes |
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| ACTION Abduct 2nd , 3rd and 4th toes from axis of 2nd toe. Assist lumbricals in extending interphalangeal joints while flexing metatarsal phalangeal joints |
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| NERVE lateral plantar nerve (1-3: deep branch; 4: superficial branch) (S2, 3) |