- Flex the torso and thigh with respect to each other.
- From upper 2/3 of iliac fossa of ilium, internal lip of iliac crest, lateral aspect of sacrum, ventral sacroiliac ligament and lower portion of iliolumbar ligament.
- Lesser trochanter.
- From muscular branch of femoral nerve.
Arterial Supply :
- Lumbar branch of iliopsoas branch of internal iliac artery.