Which bone is known as the thigh bone?

• A. Fibula
• B. Humerus
• C. Tibia
• D. Femur

Answer: (D)

The thigh bone is the femur. It sits in the thigh, running from the hip to the knee, and is the longest and strongest bone in the body, capable of withstanding large amounts of stress. Its proximal end forms the hip joint with the pelvis, and its distal end participates in the knee joint with the tibia and patella. The other bones listed are in different locations: the fibula is the thinner bone of the lower leg on the outside, the tibia is the larger weight-bearing bone of the lower leg (the shin), and the humerus is the upper arm bone.