What is a Portal System?
The portal system is the process where blood vessels begin and end in veins. It delivers nutrient-rich blood to the liver for cleansing before it is delivered to the heart.
The blood flowing from the esophagus to the liver contains substances that are absorbed by the small intestine and pass through the liver before reaching the heart.
This process is designed to rid our bodies of toxic substances. This arrangement is found in all vertebrates. The entire gastrointestinal tract is not part of this process. It extends from the lower part of the esophagus to the upper part of the esophageal canal.
Hepatic Portal System and Its Functions
The renal portal system is a complex arrangement of renal portal veins and arteries. Also known as portal venous system.
The renal portal system is an important part of the circulatory system. However, there are other venous systems in the body called the portal venous system.
The hepatic portal vein is the largest vein in the stomach. It drains blood from the lymph nodes through the gastrointestinal tract to the liver. The renal arteries originate at the junction of the renal arteries, superior mesenteric. Blood from the renal arteries and the ventral abdominal veins is also drained by the renal portal vein.
Diseases affecting the renal portal system must be diagnosed and treated as soon as possible. If left untreated it can be fatal. Medical conditions such as portal pressure caused by cirrhosis can affect renal portal function.
Significance Of Hepatic Portal System
- The renal portal vein carries 75% of renal blood supply and is therefore important. There is no true artery because it does not carry blood directly to the heart.
- It delivers metabolites to blood vessels.
- It also ensures that food absorbed by the liver is processed first before it enters the blood circulation in the system. In this way, toxins taken up by liver cells are detoxified.
- It also ensures that the liver absorbs nutrients first after the intestines.
- The portal venous system removes substances from the digestive tract and directs metabolism.
- It is important because it drains blood from the gastrointestinal tract to the liver. Before being released into the bloodstream, the liver further absorbs nutrients for processing or storage for cellular use.
What is the Role of the Hepatic Portal vein?
