Extensor hallucis longus, also known as EHL, is a muscle that runs from the lower leg to the big toe. It plays a significant role in the extension of the foot, allowing individuals to stand on their toes or lift their big toe upwards. Synonyms for EHL include the long extensor muscle of the great toe, muscle extensor hallucis longus, and extensor digitis manis longus. The extensor hallucis longus muscle is critical in maintaining balance and stability during movements that involve the foot and lower leg. Understanding the synonyms of EHL is essential in effectively communicating about the anatomy and physiology of this muscle.