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)
