1. Femur (Thighbone) Average length: 19.9 inches Image source: Wikimedia CommonsThis bone extends from the hip to the knee to bear weight and for the stability of the gait. It can resist a force of up to 1,800-2,500 lbs, thus, making it the strongest, heaviest, and longest bone in the body. The Femur serves as the origin of where the ligaments and a lot of muscles attach. It also helps the hip and
