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Encyclopedia > Portacaval anastomosis

A portacaval anastomosis is a specific type of anastomosis that occurs between the veins of portal circulation and those of systemic circulation. // Anastomosis (plural anastomoses) refers to a form of network in which streams both branch out and reconnect. ... Circulation of blood to the liver from the small intestine via the portal vein. ... Systemic circulation is the portion of the cardiovascular system which carries oxygenated blood away from the heart, to the body, and returns deoxygenated blood back to the heart. ...


Specific types include:

Region Name portal circulation systemic circulation
Esophageal esophageal varices left gastric vein esophageal veins
Rectal hemorrhoids superior rectal vein middle rectal veins and inferior rectal veins
Paraumbilical caput medusae paraumbilical veins inferior epigastric vein
Retroperitoneal (no clinical name) right colic vein, middle colic vein, left colic vein renal vein, suprarenal vein, and gonadal vein

It can be one of the conditions caused by portal hypertension. The esophagus, oe/œsophagus*, or gullet is the muscular tube in vertebrates through which ingested food passes from the mouth area to the stomach. ... In medicine (gastroenterology), esophageal varices are extreme dilations of sub mucosal veins in the mucosa of the esophagus in diseases featuring portal hypertension, secondary to cirrhosis primarily. ... The Esophageal veins drain blood from the esophagus to the inferior thyroid vein. ... The posterior aspect of the rectum exposed by removing the lower part of the sacrum and the coccyx. ... Hemorrhoids , emerods, or piles) are varicosities or swelling and inflammation of veins in the rectum and anus. ... The inferior mesenteric vein begins in the rectum as the superior rectal vein (superior hemorrhoidal vein), which has its origin in the hemorrhoidal plexus, and through this plexus communicates with the middle and inferior hemorrhoidal veins. ... The middle rectal veins (or middle hemorrhoidal vein) take origin in the hemorrhoidal plexus and receive tributaries from the bladder, prostate, and seminal vesicle. ... The lower part of the external hemorrhoidal plexus is drained by the inferior rectal veins (or inferior hemorrhoidal veins) into the internal pudendal vein. ... Grays Fig. ... Caput medusae means dilated veins around the umbilicus. ... Paraumbilical veins - Wikipedia, the free encyclopedia /**/ @import /skins-1. ... Right inferior epigastric vein - view from inside of abdomen. ... Retroperitoneal is an anatomical term that refers to the relationship of the contents of the abdominal cavity to the peritoneal space. ... Kidneys viewed from behind with spine removed The kidneys are bean-shaped excretory organs in vertebrates. ... The Suprarenal Veins are two in number: the right ends in the inferior vena cava. ... In medicine, gonadal vein refers to the blood vessel that carrying blood away from the gonad (testis, ovary) toward the heart. ... In medicine, portal hypertension is hypertension (high blood pressure) in the portal vein and its branches. ...


 
 

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