umbilical vein

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left um·bil·i·cal vein

the vein that returns the blood from the placenta to the fetus; traversing the umbilical cord, it enters the fetal body at the umbilicus and then passes into the liver, where it is joined by the portal vein; its blood then flows by way of the ductus venosus and the inferior vena cava to the right atrium.
Synonym(s): vena umbilicalis [TA]

left um·bil·i·cal vein

(left ŭm-bil'i-kăl vān)
Returns the blood from the placenta to the embryo; traversing the umbilical cord, it enters the embryo body at the umbilicus and then passes into the liver, where it is joined by the portal vein; its blood then flows by way of the ductus venosus and the inferior vena cava to the right atrium; the right umbilical vein disappears during the seventh week.
Synonym(s): vena umbilicalis [TA] , umbilical vein.
References in periodicals archive ?
Single-stranded DNA-binding protein SSBP1 affected the expression levels of lipid metabolism-associated genes in human umbilical vein endothelial cells.
3A and 3B).The umbilical arteries, umbilical vein were still rudimentary at this stage and was surrounded by large amount of mesenchymal cells.
In the first foetal stage (30-49 days), specification of umbilical arteries and umbilical vein had occurred but they were still indistinguishable.
The umbilical vein had artery-like attributes but with a larger lumen.
Lopez-Marure, "PM2.5 and PM10 induce the expression of adhesion molecules and the adhesion of monocytic cells to human umbilical vein endothelial cells," Inhalation Toxicology, vol.
Song, "Effects of atorvastatin on fine particle-induced inflammatory response, oxidative stress and endothelial function in human umbilical vein endothelial cells," Human and Experimental Toxicology, vol.
Li, "[CD4.sup.+][CD25.sup.+][Foxp3.sup.+] regulatory T cells protect the proinflammatory activation of human umbilical vein endothelial cells," Arteriosclerosis, Thrombosis, and Vascular Biology, vol.
Human umbilical vein endothelial cells (HUVEC) were isolated using the methods of Jaffe et al.
We therefore analyzed ecNOS polymorphisms, mRNA and protein concentrations, and enzyme activity in cultured human umbilical vein endothelial cells (HUVECs) to elucidate more exactly base interactions in a model free from many of these confounding factors,
The exchange occurs in this sector and then the capillaries become blood vessels, which continue them, enlarging until they form the umbilical vein. The umbilical vein is the one responsible for delivering oxygenated blood to the fetus, and it also contains nutrients and other substances that it receives from the maternal blood, whereas the blood with carbon dioxide and the waste pass through the umbilical arteries.
We examined the effects of two pentacyclic triterpenoid acids, ursolic acid (UA) and oleanolic acid (OA), on the expression of E-selectin by cultured human umbilical vein endothelial cells (HUVECs).
(2008) recently reported that UA treatment of cultured human umbilical vein endothelial cells (HUVECs) up-regulated expression of E-selectin.