Hepatic portal vein definition of hepatic portal vein by. The hepatic portal vein is a blood vessel that conducts blood from the gastrointestinal tract and spleen to the liver. Portal vein thrombosis pvt refers to an obstruction in the trunk of the hepatic portal vein, originating from the confluence of the superior mesenteric and splenic veins posterior to the neck of the pancreas. Definition csp short thick vein formed by union of the superior mesenteric vein and the splenic vein. The main vessel of the hepatic portal system is the hepatic portal vein figures 3. The upper three drain the central veins from the right, middle, and left regions of the liver and are larger than the lower group of veins.
Hepatic portal veins definition of hepatic portal veins. The portal vein thus drains blood from most of the gastrointestinal tract. The lower group of from six to twenty smaller hepatic veins come from the right lobe and the caudate lobe, are in contact with the hepatic. Information and translations of hepatic portal vein in the most comprehensive dictionary definitions resource on the web. In its ascent to the heart, the inferior vena cava passes along a groove in the posterior side of the liver, and it is there that the hepatic veins join it. A common cause of this resistance is disease within the liver. Portal vein definition of portal vein by merriamwebster. This vein is part of the hepatic portal system that receives all of the blood draining from the abdominal digestive tract, as well as from the pancreas, gallbladder, and spleen. Definition of hepatic portal vein nci dictionary of. Many clinical concepts, mr imaging and surgery of portal vein are also. Jun 26, 2018 this video shows the detailed meticulous dissection of portal vein structures. Hepatic portal system an overview sciencedirect topics. Hepatic portal vein definition and meaning collins english.
The hepatic portal vein is one of the most important veinthat receives blood from the body and transports it into the liver for filtration and processing. Approximately 75% of total liver blood flow is through the portal vein, with the remainder coming from the hepatic artery proper. Definition of hepatic portal vein nci dictionary of cancer terms. Hepatic lobules are roughly hexagonal in crosssection and are characterized by a central vein in the middle and a triad of vessels small branches of the hepatic artery and portal vein, and a bile duct at each outer corner fig. We use cookies to enhance your experience on our website, including to provide targeted advertising and track usage. Portal hypertension causes, symptoms, treatments, tests. Portal vein definition of portal vein by medical dictionary. Almost all the blood passing through the digestive tract ends up in this vein before being circulated back into the body, allowing the liver to filter the blood and remove toxins and begin metabolizing substances absorbed. The portal vein or hepatic portal vein is a blood vessel that carries blood from the gastrointestinal tract, gallbladder, pancreas and spleen to the liver. They also transport blood that has been drained from the colon, pancreas, small intestine, and the stomach. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. Hepatic portal vein article about hepatic portal vein by. The hepatic veins are divided into an upper and a lower group.
Information and translations of portal vein in the most comprehensive dictionary definitions resource on the web. Portal hypertension is defined as an increase in blood pressure in the portal. Approximately 75% of total liver blood flow is through the portal vein, with the remainder coming from the hepatic. May 27, 2019 portal vein plural portal veins a short, wide vein located in the abdominal cavity formed by the union of the superior mesenteric and splenic veins that channels blood from the gastrointestinal tract and spleen to capillary beds in the liver.
The hepatic portal vein is a vessel that moves blood from the spleen and gastrointestinal tract to the liver. The hepatic veins carry oxygendepleted blood from the liver to the inferior vena cava. Portal vein formationhigh definition demonstration and. The inferior mesenteric vein may join the splenic vein or the superior mesenteric vein. Portal hypertension results mainly from increased resistance to blood flow in the portal vein. Definition of hepatic portal vein nci dictionary of cancer. This blood is rich in nutrients that were extracted from food, and the liver processes these nutrients. The portal vein conveys venous blood to the liver for detoxification before the blood is returned to circulation via the hepatic veins. The hepatic portal vein is formed by the confluence of three main vessels, the gastric, pancreaticomesenteric, and lienomesenteric veins.
The right branch of the portal vein receives the cystic vein and then sinks into the right lobe of the liver. Definition of hepatic portal vein in the definitions. This video shows the detailed meticulous dissection of portal vein structures. Portal hypertension is an increase in the blood pressure within a system of veins called the portal venous system. The hepatic portal vein bifurcates into two distinct sections, with a branch penetrating each side of the liver, which originates behind the neck of the pancreas and is part of the hepatic portal system. Portal vein definition and meaning collins english. Veins coming from the stomach, intestine, spleen, and pancreas merge into the. Hepatic portal vein definition and meaning collins english dictionary. In human anatomy, the hepatic veins are the veinsthat drain deoxygenated blood from the liver into the inferior vena cava. A large vein formed by the union of the splenic and superior mesenteric veins. Backgroundmalignancy, hypercoagulability, and conditions leading to decreased portal flow have been reported to contribute to the aetiology of extrahepatic portal vein thrombosis epvt.
Hepatic portal vein in greek englishgreek dictionary. Hepatic portal vein meaning in the cambridge english dictionary. Hepatic portal vein noun the noun hepatic portal vein has 1 sense 1. Almost all the blood passing through the digestive tract ends up in this vein before being circulated back into the body, allowing the liver to filter the blood and remove toxins and begin metabolizing substances absorbed through. Portal vein definition is a vein that collects blood from one part of the body and distributes it in another through capillaries. For the second stage, the right hepatic vein was transected with a vascular staple, and the right hepatic artery and right hepatic canal, which had been saved during the first stage, were tied with 20 silk sutures. In 1020% of patients with cirrhosis there is a problem with a clot which is detected on a cat scan or mri. What does portal vein is patent mean in regards to an.
The hepatic portal vein is a major blood vessel in the abdomen, acting as a collection point for blood from the digestive tract and routing this blood into the liver. A short thick vein formed by union of the superior mesenteric vein and the splenic vein. Hepatic portal vein medical definition merriamwebster medical. This veinis part of the hepatic portal system that receives all of the blood draining from the abdominal digestive tract, as well as from the pancreas, gallbladder, and spleen. The hepatic portal vein receives blood specifically from the stomach, intestines, pancreas, and spleen, and carries it into the liver through the porta hepatis. Proper usage and audio pronunciation plus ipa phonetic transcription of the word hepatic portal vein. The hepatic portal vein is one of the most important vein that receives blood from the body and transports it into the liver for filtration and processing. Definition of portal vein noun in oxford advanced learners dictionary.
Hepaticportalvein dictionary definition hepaticportal. The hepatic portal vein is a vessel that moves blood from the spleen and. Hepatic portal vein definition by babylons free dictionary. The porta hepatis serves as the point of entry for the hepatic portal vein and the proper hepatic artery, and is the point of exit for the bile passages. A blood vessel that carries blood to the liver from the intestines, spleen, pancreas, and gallbladder. Portal vein structure definition fma vein in the portal venous system. Mortality of patients with epvt may be associated with these concurrent medical conditions or with manifestations of portal hypertension, such as variceal haemorrhage. Hepatic portal vein in spanish englishspanish dictionary. Hepatic portal vein definition in the cambridge english. By using our services, you agree to our use of cookies. Hepatic vein article about hepatic vein by the free. The stent connects the hepatic vein with the portal vein, which reroutes blood flow in the liver and helps relieve pressure in abnormal veins. Ta a wide short vein formed by the confluence of the superior mesenteric and splenic vein posterior to the neck of the pancreas, ascending anterior to the inferior vena cava, and dividing at the right end of the porta hepatis into right and left branches, which ramify within the liver.
Accessory hepatic portal veins are those veins that drain directly into the liver without joining the hepatic portal. Portal vein definition and meaning collins english dictionary. One of the veins which drains blood from the liver. This tutorial gives an overview of the hepatic portal system including portalcaval anastomoses. Information about hepatic portal vein in the dictionary, synonyms and antonyms. Hepatic vein, any of a group of veins that transports blood from the liver to the inferior vena cava, which carries the blood to the right atrium of the heart. Jun 05, 2015 this tutorial gives an overview of the hepatic portal system including portal caval anastomoses. Portal vein definition, the large vein conveying blood to the liver from the veins of the stomach, intestine, spleen, and pancreas. Definition of portalvein noun in oxford advanced learners dictionary. Hepatic portal vein meaning in the cambridge english. A vein conveying blood to the liver from the spleen, stomach, pancreas, and intestines. Apr 06, 2020 the hepatic portal vein is a major blood vessel in the abdomen, acting as a collection point for blood from the digestive tract and routing this blood into the liver. The aetiology, presentation and natural history of extrahepatic portal venous obstruction.
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