Extensor Hallucis Longus: The Extensor hallucis longus muscle is thin, located within the Tibialis anterior and the Extensor digitorum longus muscles.
Origin: Middle two-quarters of the anterior surface of fibula and the adjacent interosseous membrane.
Insertion: Distal phalanx of the big toe.
Function: Extends great toe and dorsiflexes the ankle joint.
Nerve Supply: Deep peroneal nerve (L4, L5, S1)