<P> In placental mammals , the umbilical cord ( also called the navel string , 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 . Conversely , the fetal heart pumps deoxygenated , nutrient - depleted blood through the umbilical arteries back to the placenta . </P>
<P> In placental mammals , the umbilical cord ( also called the navel string , 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 . Conversely , the fetal heart pumps deoxygenated , nutrient - depleted blood through the umbilical arteries back to the placenta . </P>
where is the umbilical cord attached to the mom
where is the umbilical cord attached to the mom
placenta
placenta