Which bones are part of the leg skeletal structure?

The leg skeletal structure primarily consists of the tibia and fibula. The tibia, commonly known as the shinbone, is the larger and stronger of the two bones, functioning as the main weight-bearing structure of the leg. It is located medially in relation to the fibula. The fibula is a slender bone that runs parallel to the tibia, playing a critical role in stabilizing the ankle and supporting the muscles of the lower leg.

Other choices involve bones that are not part of the leg. For instance, the scapula and clavicle are structures associated with the shoulder girdle, while the humerus and radius are located in the arm. The femur and patella, while related to the leg area, refer specifically to the thigh bone and kneecap rather than the comprehensive structure of the leg itself, which includes both the tibia and fibula. Thus, the answer highlighting the tibia and fibula directly addresses the unique components that constitute the leg skeletal structure.