Which ligament runs within the femoral head and attaches to the acetabular notch?

Which ligament runs within the femoral head and attaches to the acetabular notch?

• A. Ligamentum teres
• B. Iliofemoral ligament
• C. Pubofemoral ligament
• D. Ischiofemoral ligament

Answer: (A)

The ligament of the head of the femur (ligamentum teres) runs inside the hip joint, connecting the fovea capitis of the femoral head to the acetabular notch of the acetabulum (the notch is bridged by the transverse acetabular ligament). It is intracapsular, lying within the joint capsule rather than on its outer surface. This differentiates it from the other ligaments—iliofemoral, pubofemoral, and ischiofemoral—which reinforce the capsule from the outside and do not attach to the acetabular notch. The ligamentum teres may carry a small artery to the femoral head, but it is not the primary blood supply in adults.

The ligament of the head of the femur (ligamentum teres) runs inside the hip joint, connecting the fovea capitis of the femoral head to the acetabular notch of the acetabulum (the notch is bridged by the transverse acetabular ligament). It is intracapsular, lying within the joint capsule rather than on its outer surface. This differentiates it from the other ligaments—iliofemoral, pubofemoral, and ischiofemoral—which reinforce the capsule from the outside and do not attach to the acetabular notch. The ligamentum teres may carry a small artery to the femoral head, but it is not the primary blood supply in adults.