Two weight-bearing bones of the leg are:

• A. Tibia and femur
• B. Tibia and fibula
• C. Femur and humerus
• D. Fibula and femur

Answer: (B)

Weight-bearing bones are the ones that carry the body's load during standing and movement. In the leg, the primary load carriers are the tibia and the femur. The tibia, or shinbone, transmits most of the weight from the knee down to the ankle. The femur, the thigh bone, supports weight from the hip to the knee and provides the main structural support for the upper leg. The fibula runs alongside the tibia but is slender and mainly serves for muscle attachment and lateral stability; it does not bear significant body weight. The humerus is an arm bone and does not participate in the leg’s weight-bearing. So, the two weight-bearing bones of the leg are the tibia and the femur.