This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Anatomy
Sacrotuberous ligament is pierced by 
Select and explain. 
A. Perforating cutaneous nerve, B. Posterior femoral cutaneous, C. Superior gluteal nerve, D. Sciatic nerve
A: Perforating cutaneous nerve
Answer: A: Perforating cutaneous nerve 
Explanation: Ans: A Perforating cutaneous nerveSacrotuberous ligament (STL) -Stabiliser of sacro-iliac joint.Connects bony pelvis to veebral column.Structure piercing STL - Perforating cutaneous nerve.Perforating cutaneous nerve:Cutaneous nerve that arises from the 52 and 53 nerve roots of the sacral plexus.Supplies lower medial pa of buttock.