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A. Tibia
This is the correct answer. The trochlear of the talus bones points superiorly towards the inferior surface of the tibia. This is the site for the articulation between the talus and tibia to form the ankle joint proper (also called the mortise). Here, the trochlear and inferior tibial surface articulate with the malleoli of the fibula and tibia located either side. This forms a modified hinge joint that principally permits ankle joint dorsiflexion and plantarflexion.
This is the correct answer. The trochlear of the talus bones points superiorly towards the inferior surface of the tibia. This is the site for the articulation between the talus and tibia to form the ankle joint proper (also called the mortise). Here, the trochlear and inferior tibial surface articulate with the malleoli of the fibula and tibia located either side. This forms a modified hinge joint that principally permits ankle joint dorsiflexion and plantarflexion.
