Venous Plexus Duodeno-Caval

The duodenal-caval venous plexus (lat. plexus venosus duodenocavalis) is a network of veins located between the inferior vena cava and the duodenum. This plexus is formed as a result of an anastomosis between the veins arising from the inferior vena cava and the veins draining blood from the duodenum.

The duodenal-caval venous plexus includes:

1. Right and left duodenal veins
2. Superior and inferior pancreaticoduodenal veins
3. Hepatoduodenal ligament

These veins anastomose with each other, forming a dense network of collateral vessels around the duodenum. Due to the presence of numerous anastomoses, the duodenal-caval venous plexus plays an important role in the outflow of blood from the duodenum and pancreas to the inferior vena cava.

Venous systems are blood vessels that carry blood away from tissues and organs back to the heart. The human venous system can be divided into two types: superficial and deep venous systems. Superficial veins are a tube surrounded by a layer of muscle and are located outside the body, mostly under the skin, where they carry blood back from the extremities, head, neck and torso. The deep veins are larger and more deeply located and connect the superficial veins to the heart. One example of a deep vein is the duodenal vein, which is found in the wall of the stomach and is involved in the circulation of blood from the upper body.

The term "duodenal-cavali" is used to designate the deep venous canal of the lower half of the body and the abdominal cavity of some species of monkeys. This is due to the presence of communication between the anterior semicircular vein and the uterine cavity in these animals and in humans. The presence of such a message allows blood from the uterus to circulate in a circle and prevent the occurrence of thrombosis as a result of the ingress of blood containing a huge amount of coagulation factors in response to trauma to the cervix. The reason for this connection is usually the anatomical similarity in the structure of the intestinal vessels and internal genital organs of many species of mammals. However, after the injection of a contrast agent into the uterus of most wild monkeys, radiography did not reveal the presence of the above-described vessel. This unusual communication