Anterior compartment of leg

action: foot dorsiflexion, toe extension

innervation: deep fibular/peroneal nerve (L5, S1)

Muscle Origin and insertion Action
Tibialis anterior O: lateral surface of tibia
I: medial cuneiform, base of first metatarsal
foot dorsiflexion
foot inversion
Extensor hallucis longus O: medial surface fibula
I: base of distal phalanx of great toe
foot dorsiflexion
extension of great toe
Extensor digitorum longus O: proximal fibula
I: dorsal digital expansions - lateral 4 toes
foot dorsiflexion
extension of lateral 4 toes
Peroneus tertius/fibularis tertius O: medial surface fibula
I: base of 5th metatarsal
foot dorsiflexion + eversion