Answer
The tibia which is the larger and stronger of the two leg bone, bears the weight of the body when we stand. The fibula, the smaller, lateral bone is not connected to the femur; therefore, the weight of the upper body cannot be transmitted to it directly from the femur
Work Step by Step
The tibia articulates proximally with the femur and the fibula. Distally, it articulates with the fibula and the talus of the ankle.The fibula meets the talus and strengthens the ankle, but there is no humero-fibular joint; therefore, the weight of the body cannot be transmitted directly from humerus to fibula--the fibula does not meet the humerus. The fibula is connected to the ulna proximally, and to the ulna and talus distally; in addition, there is an interosseous membrane between tibia and fibula. These connections ensure that the tibia does not bear all of the weight alone.
