Which structure is named as the joint between the calcaneus and cuboid bones?

• A. Calcaneocuboid joint
• B. Tibiotalar joint
• C. Talonavicular joint
• D. Intertarsal joint

Answer: (A)

The joint between the heel bone (calcaneus) and the outer foot bone (cuboid) is called the calcaneocuboid joint. This idea is tested by recognizing joints by the bones that form them. The calcaneocuboid joint is a synovial plane joint on the lateral side of the hindfoot and is part of the transverse tarsal complex, working with the talonavicular joint to allow small gliding movements. Those movements help the foot adapt to uneven ground and contribute to the patterns of foot motion during gait, including how the hindfoot and midfoot interact for stable push-off.

The other options refer to different joints: the ankle joint (tibiotalar) involves the tibia and fibula with the talus, not the calcaneus and cuboid; the talonavicular joint is between the talus and navicular bones; and intertarsal joints are between other tarsal bones.