What is the ligament that runs from the acetabulum of the pelvis to the fovea of the femur?

The ligament that runs from the acetabulum of the pelvis to the fovea of the femur is called the ligamentum teres or the round ligament of the femur. This ligament plays a role in stabilizing the hip joint and contains a small artery that supplies blood to the head of the femur in infants. In adults, its significance is less critical, as the primary blood supply comes from other sources.