This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Liver, Subject name: Surgery
Pringles maneuver is clamping of - 
Select and explain. 
A. Portal triad, B. Pulmonary hilum, C. Renal hilum, D. Splenic hilum
A: Portal triad
Answer: A: Portal triad 
Explanation: Ans. is 'a' i.e., Portal triad Pringle maneuvero If manual compression of the liver fails control hemorrhage, pringle maneuver is required to control bleeding.o Placing a non crushing vascular cramp across the sutures in the porta hepatitis to control bleeding.