What Is the Duodenum?

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By albert
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Reviewed: Dr. Gromatzky
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3. Blood Supply to the Duodenum

There are two different sources of blood supply to the duodenum, which are separate for the midgut and the foregut. The gastroduodenal artery and its branch known as the superior pancreaticoduodenal artery supply the duodenum at the second segment.

The superior mesenteric artery and its branch known as the inferior pancreaticoduodenal artery supply the third and fourth segments. These arteries are followed by the veins draining blood from the duodenum. The veins drain blood through the portal venous system, either directly or indirectly via the splenic or superior mesenteric vein.

Duodenum

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