Human Liver Anatomy and Blood Supply
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Questions and Answers

What percentage of the cardiac output does the liver receive?

  • 25%
  • 20% (correct)
  • 10%
  • 5%
  • Which vessel provides 75% of the liver's blood supply?

  • Portal vein (correct)
  • Aorta
  • Pulmonary vein
  • Renal artery
  • What is the main mediator of hepatic artery buffer response?

  • Norepinephrine
  • Dopamine
  • Adenosine (correct)
  • Acetylcholine
  • What effect does sympathetic stimulation have on hepatic blood flow?

    <p>Decreases it</p> Signup and view all the answers

    What percentage of the liver's blood supply is provided by the hepatic artery?

    <p>25%</p> Signup and view all the answers

    How many anatomic lobes does the human liver consist of?

    <p>Four</p> Signup and view all the answers

    What mediates the hepatic artery buffer response?

    <p>Adenosine</p> Signup and view all the answers

    How is hepatic blood flow regulated by the hepatic artery buffer response?

    <p>By increasing adenosine levels</p> Signup and view all the answers

    What effect does hypoxemia have on hepatic blood flow?

    <p>Decreases hepatic blood flow</p> Signup and view all the answers

    Which vessel provides 25% of the liver's oxygen requirements?

    <p>Hepatic artery</p> Signup and view all the answers

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