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Human Anatomy: Muscle Groups


Human Anatomy



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Muscle Function & Other Pertinent Medical Information
- LUMBRICALS -
ORIGIN: Lateral 3: bipennate origin from cleft between the four tendons of flexor digitorum longus . medial 1: unipennate origin from medial aspect of 1st tendon
INSERTION: Dorsal extensor expansion
ACTION: Extend toes at interphalangeal joints and flex metatarsal phalangeal joints
NERVE: First: medial plantar nerve (L4,5). 2-4: deep branch of lateral plantar nerve (S2,3)






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