PATHOLOGY

PATHOLOGY MCQ

BILIARY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
How much percentage of the total blood supply of the body flows into the liver at a given point of time
A
12%
B
13%
C
14%
D
15%
Explanation: 

Detailed explanation-1: -The liver holds about one pint (13%) of the body’s blood supply at any given moment. The liver consists of 2 main lobes.

Detailed explanation-2: -Unlike any other organ in the body, the liver has two blood supplies: 75% of its blood comes in through the portal vein system. This is a network of blood vessels which transport blood through the intestine, stomach, the spleen and the pancreas, draining into the portal vein and then into the liver.

Detailed explanation-3: -The liver is the largest visceral organ in the body, receiving approximately a quarter of the cardiac output. The normal liver has a dual blood supply, deriving 70 to 80% of its blood, rich in nutrients, from the portal vein and the other 20 to 30%, rich in oxygen, from the hepatic artery.

Detailed explanation-4: -The portal vein supplies the liver with 70–75% of its blood and the hepatic artery provides the remaining 25–30%. Because of the higher oxygen content of arterial blood, the hepatic artery and portal vein contribute roughly equal amounts of oxygen to the liver in the fasting state.

There is 1 question to complete.