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Description: Blood supply of stomach: Date: 18 January 2008: Source: Essential Clinical Anatomy. K.L. Moore & A.M. Agur. Lippincott, 2 ed. 2002. Page 150
The gastroduodenal artery can be the source of a significant gastrointestinal bleed, which may arise as a complication of peptic ulcer disease.Because of its close relationship to the posteromedial wall of the second part of the duodenum, deeply penetrating ulcers or tumours of the duodenum may cause torrential bleeding from the gastroduodenal ‘artery of haemorrhage'. [1]
The human hepatic portal system delivers about three-fourths of the blood going to the liver.The final common pathway for transport of venous blood from spleen, pancreas, gallbladder and the abdominal portion of the gastrointestinal tract [2] (with the exception of the inferior part of the anal canal and sigmoid colon) is through the hepatic portal vein.
The rest comes from the partially deoxygenated blood from the portal vein. The liver consumes about 20% of the total body oxygen when at rest. That is why the total liver blood flow is quite high, at about 1 litre a minute and up to two litres a minute. That is on average one fourth of the average cardiac output at rest.
English: Colonic blood supply. 1 - transverse colon, 2 - ascending colon, 3 - caecum, 4 - right colic artery, 5 - appendix, 6 - middle colic artery, 7 - Cannon-Böhm point (the border between the areas of SMA and IMA supplies) , 8 - superior mesenteric artery, 9 - marginal artery, 10 - ileocolic artery, 11 - jejunum (partial), 12 - ileum (partial).
Measuring approximately 8 cm (3 inches) long in adults, [3] the portal vein is located in the right upper quadrant of the abdomen, originating behind the neck of the pancreas. [ 4 ] In most individuals, the portal vein is formed by the union of the superior mesenteric vein and the splenic vein . [ 5 ]
The right and left gastroepiploic arteries (also known as gastroomental) provide the sole blood supply to the greater omentum. Both are branches of the celiac trunk . The right gastroepiploic artery is a branch of the gastroduodenal artery , which is a branch of the common hepatic artery , which is a branch of the celiac trunk.
Blood vessels play a huge role in virtually every medical condition. Cancer, for example, cannot progress unless the tumor causes angiogenesis (formation of new blood vessels) to supply the malignant cells' metabolic demand. [32] Atherosclerosis represents around 85% of all deaths from cardiovascular diseases due to the buildup of plaque. [33]