This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Lower limb, Subject name: Anatomy
Gluteus medius is supplied by which of the following aery ? 
Select and explain. 
A. superior gluteal aery, B. inferior gluteal aery, C. obturator aery, D. ilo - inguinal aery
B: inferior gluteal aery
Answer: B: inferior gluteal aery 
Explanation: Inferior Gluteal Aery- It is a branch of the anterior division of the internal iliac aery. It enters the gluteal region by passing through the greater sciatic foramen, below the piriformis, along with the inferior gluteal nerve. It supplies - (1) Muscular branches to the gluteus maximus and to all the muscles deep to it below the piriformis; (2) cutaneoum branches to the buttock and the back of the thigh; (3) an aicular branch to the hip joint; (4) Trochanteric and anastomotic branch; (5) an aery to the sciatic nerve which represents the axis aery in this region, and I may at times be quite large; and (6) a coccygeal branch which supplies the area over the coccyx. Ref : B D Chaurasia's Human Anatomy , seventh edition , volume 2 , pg. no., 78.