Anterior Compartment of the Leg

This article is a stub.

Components

Anterior leg compartment muscles	Origin	Insertion	Action	Nerves
Extensor Digitorum Longus	Lateral condyle of tibia; proximal 3/4 of anterior fibula; interosseous membrane	Dorsal aspects of middle and distal phalanges of toes 2–5 (via extensor expansions)	Extends toes 2–5; dorsiflexes ankle	Deep fibular (peroneal) nerve (L5–S1)
Extensor Hallucis Longus	Anterior surface of fibula (middle third) and interosseous membrane	Dorsal aspect of base of distal phalanx of great toe	Extends great toe; assists in dorsiflexing ankle	Deep fibular (peroneal) nerve (L5–S1)
Peroneus Tertius	Distal anterior fibula (often continuous with extensor digitorum longus)	Dorsum of base of 5th metatarsal	Dorsiflexes ankle; everts foot (pronation)	Deep fibular (peroneal) nerve (L5–S1)
Tibialis Anterior	Lateral condyle and proximal two-thirds of lateral tibial surface; interosseous membrane	Medial cuneiform (medial and plantar surfaces); base of first metatarsal (medial side)	Dorsiflexes the ankle; inverts the foot; supports medial longitudinal arch	Deep fibular (peroneal) nerve (L4–L5)