The rounded bony end on the side of the thighbone.

The rounded bony end on the side of the thighbone.

• A. Lateral condyle of femur
• B. Epiphyseal plate
• C. Scapular notch
• D. Trapezoid line

Answer: (A)

The key idea here is identifying landmarks at the end of a long bone, specifically the femur. On the distal end of the thighbone, there are two rounded prominences on the outer and inner sides called the lateral and medial condyles, which form part of the knee joint. The rounded bony end on the side of the femur is the lateral condyle, positioned at the outer side of the distal femur and contributing to knee articulation. The other terms don’t describe this feature: the epiphyseal plate is the growth area near the ends of long bones in children, not a rounded end; the scapular notch is on the shoulder blade; and the trapezoid line is a feature on a different bone.

The key idea here is identifying landmarks at the end of a long bone, specifically the femur. On the distal end of the thighbone, there are two rounded prominences on the outer and inner sides called the lateral and medial condyles, which form part of the knee joint. The rounded bony end on the side of the femur is the lateral condyle, positioned at the outer side of the distal femur and contributing to knee articulation.

The other terms don’t describe this feature: the epiphyseal plate is the growth area near the ends of long bones in children, not a rounded end; the scapular notch is on the shoulder blade; and the trapezoid line is a feature on a different bone.