In the circulatory system of vertebrates, a portal venous system occurs when a capillary bed pools into another capillary bed through veins, without first going through the heart. Both capillary beds and the blood vessels that connect them are considered part of the portal venous system.

Create a flow chart showing the major systemic arteries through which blood travels from the aorta and its major branches, to the most significant arteries feeding into the right and left upper and lower limbs

Hepatofugal flow (ie, flow directed away from the liver) is abnormal in any segment of the portal venous system and is more common than previously believed. Hepatofugal flow can be demonstrated...

Your portal vein is a blood vessel that carries blood from many organs in your abdomen (belly) to your liver. Your liver filters and processes this blood before it returns to your heart and recirculates through your body.

2017年10月22日 · Portal hypertension occurs when blood pressure increases in the portal vein system, usually due to liver scarring or cirrhosis blocking blood flow through the liver. This puts patients at risk of esophageal varices, internal hemorrhoids, and caput medusae. Symptoms include gastrointestinal bleeding.

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 ...

2023年8月8日 · Portal hypertension is a disease that arises when blood flow through the liver is compromised, and blood pressures in the portal vein rise. This disease has many complications that result from increased pressure, including esophageal varices, ascites, and hepatorenal syndrome, which contribute to the high morbidity and mortality often seen in ...

Blood passes from branches of the portal vein through cavities between "plates" of hepatocytes called sinusoids. Blood also flows from branches of the hepatic artery and mixes in the sinusoids to supply the hepatocytes with oxygen. This mixture percolates through the sinusoids and collects in a central vein which drains into the hepatic vein.

Create a flow chart showing the major systemic arteries through which blood travels from the aorta and its major branches, to the most significant arteries feeding into the right and left upper and lower limbs; Create a flow chart showing the major systemic veins through which blood travels from the feet to the right atrium of the heart

Progressive resistance to hepatopetal flow results in slowed and eventually reversed flow in the main portal vein (MPV). Portal venous system decompresses by recruiting several...