This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Pelvis, Subject name: Anatomy
Which leaves the pelvis - 
Select and explain. 
A. Piriformis, B. Sciatic nerve, C. Superior gluteal vessel, D. Inferior gluteal vessel
B: Sciatic nerve
Answer: B: Sciatic nerve 
Explanation: Ans. is 'b' i.e., Sciatic nerve o Sciatic nerve leaves the pelvis and runs posteriorly in the thigh.o In the upper angle of popliteal fossa, sciatic nerve divides into tibial nerve and common peroneal nerve