Placenta
not sure what you mean by "which of these" but the umbilical cord connects the embryo to the mother.
Yes, because the umbical cord is the source of babys nutrition and circulation.
Umbilical cord.
The umbilical cord comes out of the mother with the placenta.
The umbilical cord contains blood vessels which carry substances to and from the placenta and thence from the mother.
umbilical cord
umbilical cord
umbilical
That is the correct spelling of the "umbilical cord" (the conduit between the mother's placenta and a developing fetus).
They are transported from the placenta through the umbilical cord to the fetus. The baby takes nutrients and oxygen from the mother's blood, which travel's through the umbilical cord to the baby
The umbilical cord can break in the course of the birth or be removed as the mother cleans her newborns.
The umbilical cord supplies blood to the baby. The umbilical cord is connected to the placenta and the mother's blood comes via the placenta through the umbilical cord to the baby. The baby receives oxygenated and nutrient rich blood via the umbilical cord.and de-oxygenated and nutrient depleted blood returns to the mother via the umbilical cord.