Which bones constitute the leg?

The leg is anatomically defined as the region between the knee and the ankle. The correct choice includes the tibia and fibula, which are the two primary bones of the lower leg. The tibia, also known as the shinbone, supports most of the body’s weight and is larger and stronger than the fibula. The fibula, while thinner and not weight-bearing, plays a crucial role in stabilizing the ankle and supporting muscles of the lower leg.

The femur, which is the thigh bone, is not included in the leg but is found in the upper part of the lower limb. The patella, or kneecap, is a bone that protects the knee joint but does not constitute the leg itself in terms of anatomical regions. Other options listed include bones from different parts of the body entirely, such as metatarsals and phalanges, which are bones in the foot, and the clavicle, scapula, and ulna from the upper body. Therefore, the selection highlighting the tibia and fibula accurately identifies the structural components of the leg.