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
Which of the following vessel provide maximum blood supply to the liver? 
Select and explain. 
A. Hepatic aery, B. Poal vein, C. Superior mesenteric aery, D. None of the above
B: Poal vein
Answer: B: Poal vein 
Explanation: 70% of the blood to the liver is carried by poal vein. Hepatic aery carries 30% of the blood to liver. Hepatic aery provides oxygenated blood to the liver and poal vein brings venous blood rich in products of digestion. The aerial blood on reaching the liver is conducted to central vein of each liver lobule by liver sinusoids. The central vein then drain into right and left hepatic veins which inturn leave the posterior surface of the liver and open into inferior vena cava. Ref: Clinical Anatomy by Regions By Richard S. Snell page 249