2024年11月4日 · Portal Venous System. The portal system carries venous blood (rich in nutrients that have been extracted from food) to the liver for processing.. The major vessel of the portal system is the portal vein.It is the point of convergence for the venous drainage of the spleen, pancreas, gallbladder and the abdominal part of the gastrointestinal tract.

2023年6月1日 · Your hepatic portal system (portal venous system) is an exception to this rule. ... Learning the anatomy of your blood vessels can help you understand your body on a whole new level. You might be learning about your portal vein due to a medical diagnosis. Or, maybe someone you know has a condition that affects this vein.

5 天之前 · Aberrant portal vein branching can affect the distribution of blood flow within the liver segments, influencing surgical planning and management of portal hypertension. Similarly, variations in hepatic venous anatomy may complicate procedures such as liver transplantation, where accurate venous reconstruction is critical for graft survival.

In human anatomy, the hepatic portal system or portal venous system is the system of veins comprising the portal vein and its tributaries. The other portal venous system in the body is the hypophyseal portal system. [1] Structure. Large veins that are considered part of the portal venous system are the:

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.

2023年8月8日 · The embryology of the portal venous system begins during the fourth week of gestation and continues to the twelfth week. During development, the hepatic portal system is composed of the vitelline venous system in conjunction with the umbilical veins. The primitive venous system of the liver begins as the right and left vitelline veins.

2023年10月30日 · Anatomy Location. Generally, the hepatic portal vein is about 8 centimeters (3 inches) long in adults, and is located in the upper right quadrant of the abdomen, which originates behind the neck of the pancreas and is part of the hepatic portal system.. Formation. While there may be some variations between individuals, the hepatic portal vein is usually formed by the …

Other articles where portal system is discussed: circulatory system: The blood vessels: Lower vertebrates have two so-called portal systems, areas of the venous system that begin in capillaries in tissues and join to form veins, which divide to produce another capillary network en route to the heart. They are called the hepatic (liver) and renal (kidneys) portal systems.

The portal vein (PV) is the main vessel of the portal venous system (PVS), which drains the blood from the gastrointestinal tract, gallbladder, pancreas, and spleen to the liver. ... Brody LA, Getrajdman GI, Sofocleous CT, Brown KT (2004) Incidence, patterns, and clinical relevance of variant portal vein anatomy. AJR Am J Roentgenol 183:1055 ...

2024年1月2日 · Anatomy of the Hepatic Portal System. It is the hepatic portal vein that receives blood from the organs of the gastrointestinal tract and provides blood to the liver. More specifically, the inferior mesenteric vein and the small gastric vein drain into the splenic vein, and the splenic vein drains into the hepatic portal vein. ...