Question

this ligament of the hip ____________ attaches from the ilium to the femur tightens when the thigh is flexed and externally rotated crosses the acetabular notch and completes the inferior border of the acetabular fossa can best be seen in a posterior view of the hip joint i dont know yet submit

Explanation:

The ligament in question is the transverse acetabular ligament which crosses the acetabular notch and completes the inferior border of the acetabular fossa.

Answer:

crosses the acetabular notch and completes the inferior border of the acetabular fossa