What arteries are commonly involved in upper GI bleeding?

Study for the Interventional Radiology Registry Exam. Utilize flashcards and multiple choice questions; each question offers hints and explanations. Prepare thoroughly for your success!

The celiac axis and superior mesenteric artery (SMA) are crucial in supplying blood to the upper gastrointestinal (GI) tract, which includes the stomach, duodenum, pancreas, and portions of the small intestine. When upper GI bleeding occurs, it is typically due to conditions affecting the organs supplied by these arteries, such as peptic ulcers, esophageal varices, or malignancies.

The celiac axis branches into three main arteries: the left gastric artery, the common hepatic artery, and the splenic artery, all of which feed key structures involved in upper GI bleeding. The SMA also supplies blood to portions of the small intestine and the right colon. Therefore, the involvement of these vessels is strongly associated with upper GI bleeding scenarios, making this the correct answer.

In contrast, other arteries listed, such as the inferior mesenteric artery (IMA) and lumbar arteries, primarily provide blood supply to the lower part of the GI tract and do not play a significant role in upper GI bleeding. The renal arteries primarily supply the kidneys and are not related to the vascular supply of the upper GI tract, while the hepatic artery, although important for liver function, is not commonly cited when discussing upper GI bleeding sources specifically.

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