In placental mammals, the umbilical cord (also called the navel string,[1] 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 oxygenated, nutrient-rich blood from the placenta.
References
change- ↑ "Umbilical". Online Etymology Dictionary. Archived from the original on 4 March 2016. Retrieved 27 March 2018.
