충양근(발)(lumbricals of foot (4))

LUMBRICALS

Origin Lat 3: bipennate origin from cleft between the four tendons of flexor digitorum longus . Med 1: unipennate origin from med aspect of 1st tendon		Action Extend toes at IP jnts and flex MTP jnts
Insertion Dorsal extensor expansion		Nerve First: med plantar N (L4,5). 2-4: deep br of lat plantar N (S2,3)