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The celiac artery (or the celiac trunk) provides oxygenated blood to the foregut: it supplies blood to the stomach, the liver, the spleen and the part of the esophagus that reaches into the abdomen. It also supplies the superior (or upper) half of the duodenum and the pancreas. The celiac trunk is a critical blood source for the gut, since the other major arteries aren’t connected in such a way that these organs can receive adequate blood from them. Therefore, any obstruction of the celiac artery is extremely dangerous for the organs it supplies.