The ankle joint is located where the leg meets the foot, specifically where the tibia and fibula (lower leg bones) articulate with the talus (a bone in the foot).
In more detail:
-
The superior portion of the ankle joint (also called the talocrural joint) is formed by the:
- Inferior articular surface of the tibia (shinbone)
- Distal end of the fibula
- Superior margin of the talus bone
-
These three bony borders together create the ankle mortise, a socket that the talus fits into.
-
The talus bone then articulates inferiorly with the calcaneus (heel bone) and anteriorly with the navicular bone.
Therefore, the ankle joint is essentially the articulation point between the lower leg bones (tibia and fibula) and the talus bone of the foot. It facilitates up-and-down movement of the foot.
