Answer
The superior extensor retinaculum, and the inferior extensor retinaculum hold the tendons of the anterior compartment muscle of the leg snugly around the ankle (391).
Work Step by Step
The anterior compartment muscles of the leg are the tibialis anterior, the extensor digitorum longus, the extensor hallucis longus, the fibularis( peroneus) tertius, and the fibularis (peroneus) longus.
The contraction of these muscles dorsiflexes the foot at the ankle joint. The restraint of the retinacula keep the their tendons from bowing when the anterior compartment muscles contract.
