The Portal System is a vein or system of veins in the body that begins and ends with capillaries. In most cases, this system is called the hepatic portal system because it is formed from the portal vein and its tributaries.
The portal vein is the main tributary of the liver, which collects blood from the spleen, stomach, pancreas, and small and large intestines. This blood enters the hilum of the liver and is then divided into many small vessels called sinusoids. Sinusoids are capillaries that carry nutrients such as glucose and amino acids from the intestines to the liver. Also through the sinusoids, toxins and other substances such as alcohol can be detoxified in the liver. In addition, liver cells use nutrients to create new cells and produce bile, which is then removed from the liver through the bile duct.
Thus, the portal system is an important circulatory system in the body, providing nutrition and protection to the liver from toxins and other harmful substances.
The portal system is a vein or system of veins that begins and ends with capillaries, as the liver portal system (Portal System or PV) is called in medicine. Most often, the portal system is understood as a set of large venous vessels carrying blood and lymph from the upper parts of the digestive tract. Mainly venous blood passes through it from the mesenteric part of the transverse colon, elements of the duodenum and from the stomach. Also, the large pulmonary arteries form an important part of the portal system, since they connect the heart muscle to the veins of the abdominal cavity. Through the branches of the arteries, blood returns to the heart in its fullest composition, which is necessary to support the functioning of the body.
The portal system is critical to the metabolism of the body as a whole, as it ensures the proper distribution of nutrients and toxins. It also plays an important role in maintaining homeostasis (the state of the internal environment of the body), regulating the level of metabolism and water-electrolyte balance. During the course of the portal vein (PV), it passes through various areas of the human body and causes changes in the surrounding tissue. Influencing fluid in tissues in a hormonal way, this part of the cardiovascular system allows you to regulate the volume of blood flow, chemical composition and rate of transpiration. The human body also uses the portal system