Pump Up Your Fitness Career: Dominate the ISSA Trainer Exam 2025 – Train Like a Pro!

The ankle joint is primarily formed by the tibia and the talus. The tibia, which is the larger and stronger of the two bones in the lower leg, articulates with the talus, a bone in the foot that connects the leg to the foot and plays a crucial role in weight-bearing and balance. This articulation creates a vital hinge joint that allows for dorsiflexion and plantarflexion movements, enabling activities such as walking, running, and jumping.

The talus also interacts with the fibula, the other bone of the lower leg, but it is the direct articulation between the tibia and talus that primarily constitutes the ankle joint. This connection provides stability and support, allowing for effective movement across various activities. Understanding this relationship underlines the significance of the tibia and talus in overall ankle function and health. The other options listed, while they reference various bones, do not pertain to the ankle joint specifically or are involved in joints unrelated to the ankle.