Arteries of the small intestine (English)

Overview of the abdomen with the liver reflected, and parts of the stomach, pancreas and large intestine removed. The proximal part of the duodenum (as far as the major duodenal papilla), is primarily supplied by superior pancreaticoduodenal branches of the gastroduodenal artery (which also provides supply via the supraduodenal, retroduodenal and right gastroomental arteries). There are also small contributions to the duodenum from the right gastric artery, a branch of the proper hepatic artery. The superior mesenteric artery supplies the remainder of the duodenum via the inferior pancreaticoduodenal and first jejunal arteries. The jejunal and ileal branches of the superior mesenteric artery form loops known as arterial arcades. They give off branches known as straight arteries or vasa recta which supply the jejunum and the ileum. The terminal part of the ileum receives its supply from branches of the ileocolic artery.