Human Anatomy: Muscle Groups |
Muscle Function & Other Pertinent Medical Information | |
- PLANTAR INTEROSSEI - | |
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 |
NERVE: | Deep branch of lateral plantar nerve (S2,3) |