Umbilical vein

When umbilical vein ( umbilical vein ) is called a venous blood vessel that leads oxygenated blood from the placenta to the fetus via the umbilical.

The umbilical vein is initially arranged in pairs; However, the right umbilical vein regresses early, so that the left ( umbilical vein artery ) takes over the function alone. It connects the inferior both to the left portal vein and via the ductus venosus ( Arantii ) with the vena cava.

The umbilical vein artery closes after birth to a solid cord, the ligamentum teres hepatis ( "round liver Band" ). In the first days of life, the left umbilical vein is but one possible way for ascending navel infections with formation of liver abscesses. In portal hypertension (increased pressure in the flow area of the portal vein ), the occluded vessel can open again and the clinical picture of the caput medusae lead ( like varicose veins dilated veins around the navel ).