A~This is a question that is often asked when the issue of surrogacy is on the table. A Reproductive Endocrinologist once explained it to me very simply, that the fetus makes it's own blood supply. The more technical answer is this: the placenta is the organ that attaches the developing embryo or fetus to the uterus (womb) and is composed of maternal and embryonic tissue, it links the blood supply of the embryo to the blood supply of the mother, allowing the exchange of oxygen, nutrients, and waste products. Please note that the two blood systems are not in direct contact, but are separated by thin membranes, with materials diffusing across from one system to the other. The placenta also produces hormones that maintain and regulate pregnancy. It is shed as part of the afterbirth.
During my first surrogacy, my couple decided to bank the cord blood. I wondered if I could use it if I personally ever needed to and the answer was no because those babies were not related to me. That was enough of an answer for me.
Sharon
www.InfertilityAnswers.net
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