APPLIED RADIOLOGICAL ANATOMY

Detailed explanation-1: -The posterior inferior iliac spine (Sweeney’s Tubercle) is an anatomical landmark that describes a bony “spine", or projection, at the posterior and inferior surface of the iliac bone. Posterior inferior iliac spine. Right hip bone. External surface.

Detailed explanation-2: -The superior gluteal nerve (L4, L5, S1) passes backward through the greater sciatic notch, above the piriformis. An upper branch supplies the gluteus medius, and a lower branch supplies the gluteus minimus, tensor fasciae latae, and hip joint.

Detailed explanation-3: -Posterior Compartment The semitendinosus extends the hip and flexes the knee. The muscles originate at the ischial tuberosity and insert at the medial surface of the tibial via a structure called the pes anserinus.

Detailed explanation-4: -The greater sciatic notch is a notch in the ilium, one of the bones that make up the human pelvis. It lies between the posterior inferior iliac spine (above), and the ischial spine (below). The sacrospinous ligament changes this notch into an opening, the greater sciatic foramen.