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[smalley]

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this may sound stupid but i dont care since am confused now..
all along i had the imp that kidney recieves the largest amount of blood flow
fa says its liver an somewhere i read its brain
which 1??
thank you

 

[OddNath]

this may sound stupid but i dont care since am confused now..
all along i had the imp that kidney recieves the largest amount of blood flow
fa says its liver an somewhere i read its brain
which 1??
thank you

I'm not sure either, but I think what's confusing you is that the kidneys receive the largest amount of blood flow relative to their size, not the largest amount total.

 

[mules05]

this may sound stupid but i dont care since am confused now..
all along i had the imp that kidney recieves the largest amount of blood flow
fa says its liver an somewhere i read its brain
which 1??
thank you

The kidneys receive about 25% of the total cardiac output, which I believe is the largest proportion going to any one organ.

The liver receives a large part of its blood supply from the portal vein, which is not considered to be part of the cardiac output, and therefore may receive a larger total blood supply while receiving a smaller percentage of the cardiac output than the kidneys.

I don't remember ever hearing that the brain receives a greater blood supply than the liver or kidneys in normal physiology, but in a hypovolemic state (esp in shock) the blood flow to the brain will be preserved at the expense of other organs- such as the liver and kidneys- and in this state could be said to receive the greatest blood supply.

Does that make sense?

 

[smalley]

The kidneys receive about 25% of the total cardiac output, which I believe is the largest proportion going to any one organ.

The liver receives a large part of its blood supply from the portal vein, which is not considered to be part of the cardiac output, and therefore may receive a larger total blood supply while receiving a smaller percentage of the cardiac output than the kidneys.

I don't remember ever hearing that the brain receives a greater blood supply than the liver or kidneys in normal physiology, but in a hypovolemic state (esp in shock) the blood flow to the brain will be preserved at the expense of other organs- such as the liver and kidneys- and in this state could be said to receive the greatest blood supply.

Does that make sense?

thanks