Where does the extensor hallucis longus muscle insert?

The extensor hallucis longus muscle inserts on the dorsal surface of the base of the distal phalanx of the great toe. This muscle plays a crucial role in extending the great toe (the hallux) and assists with dorsiflexion of the foot at the ankle joint. The insertion point on the distal phalanx allows this muscle to effectively extend the toe during activities such as walking, running, and jumping.

Understanding the anatomical function of the extensor hallucis longus highlights the importance of its insertion site. The positioning on the dorsal surface of the phalanx enables this muscle to function properly in movements that require the extension of the toe, contributing to the overall mechanics and balance of the foot during various activities. Other options do not accurately describe the anatomical insertion of this specific muscle, further solidifying why the dorsal surface of the base of the distal phalanx is the correct answer.