What are the two main blood vessels that supply the liver with blood?

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The liver gets blood from two sources: a portal venous inflow and an arterial inflow. The hepatic portal vein brings nutrient-rich blood from the gastrointestinal tract and spleen to the liver, supplying substrates for metabolism and detoxification. The hepatic artery proper provides oxygen-rich blood to meet the liver’s high metabolic needs. In the liver, these two blood streams mix in the sinusoids, allowing hepatocytes to process nutrients, detoxify substances, and support overall liver function. Other vessels like the aorta, renal arteries, or the superior mesenteric artery supply other organs and do not form the liver’s main dual blood supply.