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Placenta

Placenta is the organ that attaches itself to the uterus during the earliest stages of pregnancy. It provides blood, oxygen, and nourishment to the fetus while also allowing a way for waste to exit the baby's blood as well.

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How does the fetus get oxygen and nutrients and how does the fetus get eggs?

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Asked by Wiki User

Via the umbilical vein which connects to the placenta in the womb of the host mother

Does the placenta help form the umbilical cord?

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Asked by Wiki User

No, they are not. The umbilical cord is an actual cord that connects the baby to the placenta. The placenta is the lining of the uterus that is developed over the course of the pregnancy. The placenta is a "filter" through which the baby's food and oxygen is delivered via the umbilical cord. Once the baby is born, the umbilical cord is clipped and severed. The final, 3rd stage of labor, is the passing of the placenta. That happens 15-30 minutes after the baby is born. The placenta is then checked thoroughly, to ensure that is in intact, and that no pieces are left behind in the uterus. This is VERY important, because if any of the placenta is left in the uterus, it will cause an infection, high fever, can lead to infertility. If not removed, the outcome can be lethal.

Why is placenta important?

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Asked by Wiki User

It nourishes the embryo

What structures form the placenta?

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Asked by Wiki User

Chorionic villi & Decidua Basalis

What does it mean if the placenta is over the uterus?

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Asked by Wiki User

I'm no doctor but I'm sure this is placenta previa.... have you been told this is happening to you? my mum had this with my little brother, there are varying degrees of the condition, best case - they keep an eye on you and you carry on as normal, worst case you may have to have a c-section ...... your doctor or midwife would discuss this with you! x

What is the main function of the placenta?

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Asked by Wiki User

The placenta has several functions in development of the human embryo. # It is an endocrine organ, i.e an organ which secretes hormones from endocrine glands which are ductless. # It is involved in the exchange of substances between the maternal and fetal circulation, e.g. glucose, water, inorganic ions, antibodies, fatty acids, amino acids, etc. # It acts as a barrier bwtween the fetal and maternal circulation for the following reasons - firstly because the mother may have a different blood type to the fetus (i.e. Rhesus Negative when the baby is Rhesus positive) and this stops her from mounting an immune response against the fetus. Secondly because the higher blood pressure of the mother would damage the fetal capillaries, which are very fragile if the placenta wasn't there to act as a barrier. # The blood flow in maternal and fetal capillaries in the placenta is counter-current, in other words they flow in opposite directions, maximising the concentration gradient between them, which is essential for transport of substances by the mechanism of diffusion (e.g. of waste gases like CO2) and facilitated diffusion (e.g of glucose)

Why the mass of the placenta increases as the foetus develops?

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Asked by Wiki User

To hold the growing fetus .

How long after delivering the baby does the placenta deliver?

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Asked by Kharrima

After birthing the baby, you will then birth the placenta. This is the 3rd stage of labor and is also referred to as the afterbirth. The afterbirth can take a few minutes up to a half an hour.

Where is the umbilical cord on a puppy?

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Asked by Wiki User

If you leave them attached to the mom dog they're less likely to get lost.

Is chapstick poisonous?

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Asked by Wiki User

Yes it is, as it contains ingredients in it, that in the longrun can be harmful to your body. It's pretty much common sense that you wouldn't eat it.

Do fish have placenta?

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Asked by Wiki User

If you define a placenta as a structure with which a mother may transfer nutrients to its young during their development up to the moment of free-living birth, then yes. For example the common smooth-hound (Mustelus mustelus), a small shark found in the UK is viviparous (gives birth to young instead of laying eggs) and has a placental connection via an umbilical cord to its pups before they are born. Note the starry smooth-hound (Mustelus asterias) also found in the UK has no placental structure but is viviparous, providing for its young via egg sacks. The Dogfish, another UK shark, is not viviparous and its eggs are the "mermaids' purses" we find washed up on the beach.

What is placenta called after it is expelled from the body after childbirth?

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Asked by Wiki User

the placenta is called an afterbirth after the baby is born

Can drugs get to the embryo before the placenta is formed?

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Asked by Wiki User

ineed the durgs of hypertation

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of coarse this period of embryo is more dangerous as placenta act as barrier for harmful agents , and now this barrier is lost . so, you must seek medical help, to choose the suitable drug for you and your baby

What forms the stalk of the umbilical cord?

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Asked by Wiki User

newtest3


eggs

What is the importance of the placenta?

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Asked by Wavymouse

It nourishes the embryo

How early in a pregnancy can a placenta separate from the uterus?

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Asked by ANNW

The only way to tell if your placenta has separated from the uterus it to go to your OBGYN and have them do a sonogram. If your doctor is unavailable, I would go to your local emergency room. I urge you to do this as soon as possible because my first daughter died from this and your baby may be in grave danger. The best of luck to you and I hope everything is ok.