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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.
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.
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 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.
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 convergence of the ...
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. There are several variants affecting the PV, and quite a number of congenital and acquired pathologies. In this pictorial review, we assess the embryological ...
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.
Portal Vein Function, Location, and Anatomy. The portal vein, or hepatic portal vein, is the main blood vessel of the portal venous system (PVS), which delivers blood to the liver from the stomach, intestines, spleen, gallbladder, and pancreas. Portal vein blood contains nutrients and toxins extracted from digested contents, which the liver ...
Article Media (1) The portal venous system includes all vessels that collect venous blood from the abdominal part of the digestive tract (except for the lower part of the rectum), and from the spleen, pancreas, and gallbladder. Blood from these organs is carried to the liver and enters its inferior surface through the large hepatic portal vein.
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.