The femoral head (femur head or head of the femur) is the highest part of the thigh bone (femur). It is supported by the femoral neck.Radiograph of a healthy human hip jointGross pathology specimen of the head of the femur with some synovium attached at the bottom and the ligament attached at the top. Ruler in centimeters at left side.Right femur. Anterior surface.Left hip-joint, opened by removing the floor of the acetabulum from within the pelvis.The Obturator externus.Hip joint. Lateral view. Femur headHip joint. Lateral view. Femur head The femoral head (femur head or head of the femur) is the highest part of the thigh bone (femur). It is supported by the femoral neck.