The image showcases the pelvic bone, highlighting the presence of both the piriformis muscle and the gluteal muscles. The piriformis muscle is situated deep within the buttocks region, beneath the gluteal muscles. It is located in close proximity to the sacrum, the triangular bone at the base of the spine. The piriformis muscle extends from the sacrum and passes through the greater sciatic notch, a bony opening in the pelvis. Its course continues towards the greater trochanter of the femur, a prominent bony structure in the thigh bone. The gluteal muscles, on the other hand, cover a wider area and are responsible for the overall shape and strength of the buttocks. These muscles include the gluteus maximus, gluteus medius, and gluteus minimus. Together, the piriformis muscle and the gluteal muscles play a crucial role in hip movement, rotation, and stabilization.