Inferior gluteal artery
The inferior gluteal artery is a terminal branch of the anterior trunk of the internal iliac artery. It exits the pelvis through the greater sciatic foramen. It is distributed chiefly to the buttock and the back of the thigh.
Anatomy
Origin
It is the smaller of the two terminal branches of the anterior trunk of the internal iliac artery.Course
It passes posterior-ward within parietal pelvic fascia. It travels in between the S1 nerve and S2 nerve. It descends upon the nerves of the sacral plexus and the piriformis muscle, posterior to the internal pudendal artery. It passes through the inferior part of the greater sciatic foramen. It exits the pelvis inferior to the piriformis muscle, between piriformis muscle and coccygeus muscle.It then descends in the interval between the greater trochanter of the femur and tuberosity of the ischium. It is accompanied by the sciatic nerve and the posterior femoral cutaneous nerves, and covered by the gluteus maximus. It is situated medial to the sciatic nerve. It continues down the back of the thigh, supplying the skin, and anastomosing with branches of the perforating arteries.