👉 Portal fluid, also known as portal venous blood, is a specialized form of blood that circulates through the liver's sinusoids and into the hepatic veins. This fluid is distinct from systemic venous blood due to its unique composition, which includes plasma proteins and cells that are filtered through the liver's dense network of capillaries. The liver acts as a filtration and detoxification organ, and portal fluid carries nutrients, toxins, and other substances from the digestive tract into the liver for processing. This specialized fluid plays a crucial role in maintaining homeostasis by regulating blood flow and filtering harmful substances before they enter the systemic circulation.
