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liver - right lobe
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The liver receives blood from both the portal vein and the common hepatic artery (via right and left hepatic arteries); the portal vein provides slightly more oxygen than the common hepatic artery to the liver (approximately 55% : 45%, respectively).

Portal hypertension may lead to dilated subcutaneous veins radiating in all directions from the umbilicus known as caput medusae. The venous route is as follows: portal vein --> paraumbilical veins --> thoracoepigastric veins (located subcutaneously). Recall that esophageal varices and rectal varices may also develop due to portal hypertension.
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