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 |