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Q: Is placenta inside the sac
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What if a small looking piece of the dogs inside comes out while giving birth?

It is normal for the sac and the placenta to come out with each puppy. It is also normal for the mother to EAT the sac and the placenta.


What is the outer sac around the fetus?

placenta


How amniotic sac and placenta alike?

are membrane that helps


The inner lining of the sac surrounding the fetus is the?

this is called the placenta


What is a blood sack behind the placenta?

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.


How does the fetus get its needs?

Inside of your belly is a umbilical cord going to your embriotic sac (the thing the baby is in) from the placenta. The placenta takes some of the nutrients from your blood and passes it through the cord to your baby. This is why your baby eats what you eat, and is why you can't smoke or drink without risk of harming it.


What embryonic membranes has the placenta more or less put out of business?

the yolk sac and the allantois


What part of the egg acts as the placenta in mammals?

The allantois, yolk sac and part of chorion.


What is the thick structure of blood vessels and tissues that grows and supports the amniotic sac?

placenta


What is the name for the protective structure that forms around an embryo?

Amniotic membrane or amniotic sac, containing the embryo and amniotic fluid.


What part of the chicken egg acts as placenta in mammals?

The allantois, yolk sac and part of chorion.


When a dog is delivering does she have 1 sac and or placenta that needs to be delivered per puppy?

when a dog is in labor does she need to expell 1 sac or placenta for each puppy that she has, what happens if 1 doesnt come out? example 4 puppies, and only 3 sacs or placentas.