inferiorly. At the lower border of the piriformis muscle, the nerve turns backward and divides into upward and downward diverging branches, which enter the gluteus maximus. The nerve may also send a branch to the posterior femoral cutaneous nerve. The inferior gluteal nerve reliably emerged inferior to the piriformis muscle. The branching characteristics of the nerve falls into two broad categories.One category is short stalks which came under the piriformis and then gave rise to all of the terminal branches of the nerve which spanned the muscle of the gluteus maximus. The number of branches from the stalk ranged from four to six. The second category occurs as a partial split of the stalk that occurred proximal to the coverage of the piriformis. There were two to three divisions of the inferior gluteal nerve under the piriformis that would further divide close to the insertion of the nerve into the actual muscle belly. The nerve was always seen close to and medial to the sciatic nerve when it left the sacral plexus inferior to the piriformis. In all specimens, the nerve entered the deep surface of gluteus maximus approximately 5 cm from the tip of the greater trochanter of the femur and entered the deep surface of gluteus maximus over the inferior one-third of the muscle belly. The inferior gluteal nerve is accompanied by the inferior gluteal artery, a branch of the anterior trunk of the internal iliac artery. However the relationship between the inferior gluteal nerve and artery was found to be unpredictable. No consistent relationship between the inferior gluteal artery and the inferior gluteal nerve was observed in current studies. There is a relationship between the common stalk of the inferior gluteal nerve and external anatomic landmarks. The targeted region should be aimed inferior to the most prominent aspect of the greater trochanter, and medial to the landmark of the ischial tuberosity, at the depth of the posterior border of the proximal femur. Triangulating using these three coordinates, one can reliably reach the source of the inferior gluteal nerve. This will result in maximal stimulation of the gluteus maximus musculature when using electrical stimulation for the purpose of prevention of pressure ulcers. The sciatic nerve (L4 to S3), the largest nerve of the body, immediately leaves the pelvis through the greater sciatic foramen, below the piriformis. The superior gluteal nerve passes backward through the greater sciatic foramen, above