Anastomosis (plural anastomoses) refers to a form of network in i m sorry streams both branch out and reconnect. The hatchet is provided in medicine, biology, and also geology.

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Anastomosis is the surgical connection of two structures.<1> It typically refers come connections in between blood ship or connections in between other tubular structures such as loops that intestine. In circulatory anastomosis, many arteries naturally anastomose through each other. For example: the inferior epigastric artery and superior epigastric artery. In surgery, surgical anastomosis occurs once a segment the intestine is resected and the two staying ends space sewn or stapled with each other (anastomosed). The procedure is described as intestinal anastomosis.

Pathological anastomosis results from trauma or an illness and may involve veins, arteries, or intestines. These room usually described as fistulas. In the cases of veins or arteries, traumatic fistulas commonly occur in between artery and vein. Traumatic intestinal fistulas commonly occur between two loops the intestine (enetero-enteric fistula) or intestine and also skin (enterocutaneous fistula). Portacaval anastomosis, by contrast, is one anastomosis between a vein that the portal circulation and a vein of the systemic circulation, which permits blood to bypass the liver in patients with portal hypertension, often resulting in hemorrhoids, esophageal varices, or caput medusae.


In evolution, anastomosis is a recombination of evolution lineage. Typical accounts of evolutionary lineage current themselves as the an easy branching out of types into novel forms. Under anastomosis, types might recombine after ~ initial branching out, such together in the instance of current research which mirrors that humans and chimpanzees may have actually interbred ~ an initial branching out.<2> A second case in i beg your pardon the idea that anastomosis finds application is in the theory of Symbiogenesis, in which new forms that life (species) are seen to emerge from the development of novel symbiotic relationships.


In geology, anastomosis is supplied to refer to quartz (or other) veins displaying this property, i beg your pardon is often related come shearing in metamorphic regions. There is also a form of stream called anastomosing, which is composed of a wide strath and also multiple thalwegs divided by vegetated stabilized islands within subparallel banks.

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