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The jejunum and ileum receive blood from the superior mesenteric artery. [14] Branches of the superior mesenteric artery form a series of arches within the mesentery known as arterial arcades, which may be several layers deep. Straight blood vessels known as vasa recta travel from the arcades closest to the ileum and jejunum to the organs ...
The ileum, along with the jejunum, is suspended inside the mesentery, a peritoneal formation that carries the blood vessels supplying them (the superior mesenteric artery and vein), lymphatic vessels and nerve fibers. [3] There is no line of demarcation between the jejunum and the ileum. There are, however, subtle differences between the two: [3]
The term "intestinal arteries" can be confusing, because these arteries only serve a small portion of the intestines. They do not supply any of the large intestine. The large intestine is primarily supplied by the right colic artery, middle colic artery, and left colic artery. They do not supply the duodenum of the small intestine.
The jejunum is typically of larger diameter than the ileum. The villi of the jejunum look like long, finger-like projections, and are a histologically identifiable structure. While the length of the entire intestinal tract contains lymphoid tissue , only the ileum has abundant Peyer's patches , which are unencapsulated lymphoid nodules that ...
Vasa recta are straight arteries arising from arterial arcades (anastomoses of the jejunal and ileal arteries, branches of superior mesenteric artery) in the mesentery of the jejunum and ileum that supply the jejunum and ileum. [1] The vasa recta of the jejunum are long and few, compared to the ileum where they are numerous and short.
The jejunal arteries are four-five branches of the superior mesenteric artery [1] which supply blood to the jejunum. [ citation needed ] They arise from the left side of the superior mesenteric artery.
In anatomy, the ileal vessels are the arteries and veins which supply or drain the ileum, the final section of the small intestine. [1] These are: Unnamed branches of the superior mesenteric artery (see also intestinal arteries) Unnamed tributaries of the superior mesenteric vein
Arteries and veins around the pancreas and spleen. The digestive system is supplied by the celiac artery. The celiac artery is the first major branch from the abdominal aorta, and is the only major artery that nourishes the digestive organs. There are three main divisions – the left gastric artery, the common hepatic artery and the splenic ...