Great question - and an interesting one!
So the sciatic nerve originates from both lumbar and sacral nerve root levels. It is the large nerve responsible for innervation of each of the lower extremities.
Travelling laterally, the sciatic nerve courses through the greater sciatic notch. Anteriorly, the psoas major, psoas minor and illacus muscles lay. Additionally, the gemellus inferior and quadratus femoris lie.
Bones structures include the acetabulum of the femur, neck of the femur as it translates down the proximal femur.
Nerves corresponding to the sciatic nerve or most interest is the lateral femoral cutaneous nerve, which is responsible for sensation of the lateral thigh. The femoral nerve runs near the femoral artery and vein.
The femoral artery and vein lie anterior to the femur.
Hope this helps!