Which two vessels make up the dual blood supply that feeds the liver?

Prepare for the WCUI/Smith Chason Exit Assessment – Abdomen, Vascular, OB/GYN Test. Enhance your study with flashcards and detailed multiple choice questions, complete with hints and explanations. Master your exit exam with confidence!

Multiple Choice

Which two vessels make up the dual blood supply that feeds the liver?

Explanation:
The liver needs both nutrient-rich blood and oxygen to function, so it has a dual blood supply: the portal venous system and the hepatic arterial system. Blood from the GI tract, via the portal vein (formed by the superior mesenteric vein and splenic vein), brings nutrients to be processed and toxins to be detoxified. At the same time, the hepatic artery delivers oxygenated blood to meet the liver cells’ metabolic needs. This combination is why the liver can efficiently process nutrients and perform its many functions. Relying on only one source wouldn’t provide both nutrients and enough oxygen. The two vessels that supply this dual system are the portal vein and the hepatic artery.

The liver needs both nutrient-rich blood and oxygen to function, so it has a dual blood supply: the portal venous system and the hepatic arterial system. Blood from the GI tract, via the portal vein (formed by the superior mesenteric vein and splenic vein), brings nutrients to be processed and toxins to be detoxified. At the same time, the hepatic artery delivers oxygenated blood to meet the liver cells’ metabolic needs. This combination is why the liver can efficiently process nutrients and perform its many functions. Relying on only one source wouldn’t provide both nutrients and enough oxygen. The two vessels that supply this dual system are the portal vein and the hepatic artery.

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