What is Umbilical cord?
[[Image:Umbilicalcord.jpg|thumb|A newborn with umbilical cord still attached (3 minutes.)]] In [[Placentalia|placental]] [[mammal]]s, the '''umbilical cord''' (also called the '''navel string''',<ref>{{cite web |title=Umbilical |url=http://www.etymonline.com/index.php?frame=0&search=Umbilical+&searchmode=none |url-status=live |archive-url=https://web.archive.org/web/20160304071009/http://www.etymonline.com/index.php?frame=0&search=Umbilical+&searchmode=none |archive-date=4 March 2016 |access-date=27 March 2018 |website=Online Etymology Dictionary}}</ref> '''birth cord''' or '''''funiculus umbilicalis''''') is a conduit between the developing [[embryo]] or [[fetus]] and the [[placenta]]. During [[prenatal development]], the umbilical cord is physiologically and genetically part of the fetus and (in humans) normally contains two [[arteries]] (the [[umbilical arteries]]) and one [[vein]] (the [[umbilical vein]]), buried within [[Wharton's jelly]]. The umbilical vein supplies the fetus with [[oxygen]]ated, [[nutrient]]-rich [[blood]] from the [[placenta]]. == References == {{Reflist}} {{Biology-stub}} [[Category:Pregnancy and childbirth]]