What bones contribute to the ankle joint?
The ankle joint is a complex joint that is formed by the articulation of three bones:
1. Tibia (shin bone): The tibia is the larger of the two lower leg bones and forms the medial (inner) side of the ankle joint. The tibia articulates with the talus, one of the bones of the foot, to form the ankle joint.
2. Fibula (calf bone): The fibula is the smaller of the two lower leg bones and forms the lateral (outer) side of the ankle joint. The fibula provides stability to the ankle joint and also articulates with the talus.
3. Talus: The talus is one of the bones of the foot and forms the superior (top) portion of the ankle joint. The talus sits on top of the calcaneus (heel bone) and articulates with the tibia and fibula to form the ankle joint.