| 释义 |
DictionarySeeumbilical veinleft umbilical vein
left um·bil·i·cal veinthe 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. |