Hepatic Portal System- Dr. Morton

What are the first set of capillaries in the hepatic portal system?

* capillaries lining the lamina propria of the small and large intestines

Portal vein drains into the?

parenchyma of the liver

Portal vein collects?

visceral GI blood from the foregut, midgut, and hindgut

Tributaries of IMV have the same what as the arteries?

same name and distribution

What does the hepatic portal system lack?

* lacks valves so blood flow can go in any direction depending on the pressure gradient

When there is a blockage or a congestion in the portal vein going to the distal esophagus, what happens?

* pressure builds up and blood begins to move in the opposite direction up the esophageal veins & other tributaries
* engorgement of esophageal veins leading to the formation of varices/varicose veins

primary drainage of the abdominal wall is?

caval drainage