The umbilical cord is attached to the placenta and the placenta is attached to the wall of the uterus
The "Umbilical cord".
not sure what you mean by "which of these" but the umbilical cord connects the embryo to the mother.
The umbilical cord contains blood vessels which carry substances to and from the placenta and thence from the mother.
The umbilical cord.
The umbilical cord.
umbilical cord
umbilical cord
The structure that connects an embryo with the organ that nourishes it is called the umbilical cord. The umbilical cord attaches the developing fetus to the placenta, which is the organ responsible for providing nutrients and oxygen to the embryo or fetus while removing waste products. The umbilical cord contains blood vessels (two arteries and one vein) that carry deoxygenated blood and waste products away from the fetus and deliver oxygen and nutrients to the fetus from the placenta.
In placental mammals, the umbilical cord (also called the birth cord or funiculus umbilicalis) is a conduit between the developing embryo orfetus and the placenta.
The umbilical cord. The umbilical cord has the function of sending blood to the baby and returning blood from the baby after it has been utilized. There are two arteries in the umbilical cord that do this.
The two structures that are connected by the umbilical cord are the embryo and the placenta. The umbilical cord is also known as the navel string or birth cord.
The embryo gets rid of waste when the mom feels sick and vomits.