This is the birth sac that needs to be removed so the baby can start to breathe. If you are talking about the sac that shows on an ultrasound, this is the amniotic sac that contains the 'waters' and is absolutely necessary for the growth of the baby. It is the same thing that the answer above mentions.
No. The womb is your uterus. The placenta is what attaches the baby to the umbilical chord and provides the baby with nutrients. During labor the female will expel the placenta after the baby is delivered.
do identical or non identical twins share the same placenta
The amniotic sac and placenta begin to form shortly after conception. The amniotic sac develops from the outer membranes surrounding the embryo, starting around the second week of pregnancy, while the placenta begins to form from the trophoblast cells that surround the developing embryo around the same time. By the end of the first trimester, both structures are well-established, providing essential support and protection for the growing fetus.
Both jobs are similar. One person carries the water, another carries the feed sack.
no they do not.
Yes, the exact same thing happened to me.
No, twins can either share the same placenta (monochorionic) or have separate placentas (dichorionic), depending on whether they are identical or fraternal twins.
What was the sack and why*and how unless he lost it* would he buy it again?
The embryonic stage is a part of the first trimester. The first trimester is the first three months of pregnancy and the embryonic period ends around week 8 and it then becomes a fetus.
Yes, twins can share a placenta during pregnancy. This occurs when identical twins develop from a single fertilized egg and share the same placenta.
No, twins in the same placenta are not genetically identical. While identical twins share the same DNA, they may have slight genetic differences due to mutations that occur after fertilization.