- Anterior surface of lateral process of sacrum and gluteal surface of ilium at the margin of the greater sciatic notch.
- Superior border of greater trochanter.
- Lateral rotator of the hip joint; also helps abduct the hip if it is flexed.
Arterial Supply :
- Superior and inferior gluteal and internal pudendal arteries.
- Lateral rotator of the hip joint.
- It also helps abduct the hip if it is flexed.