So when Tyrone tells me that the placenta is an ancient organ,

It'll turn into the placenta.

Old man Placenta control.

That is going to turn into the placenta, and I'll do a future video where in a human, it'll turn into a placenta.

This diameter decreases rapidly within the placenta.

PCBs, DDT cross the placenta and effectively determine the likelihood of developing breast cancer and obesity and diabetes already when the baby's in the womb.

During pregnancy, they form the placenta, which connects mom and baby.

If the placenta divides, this takes place after the third day after fertilization.

During pregnancy, placentation is the formation and growth of the placenta inside the uterus.

The amnion is also contained within the chroion and holds the fluid in which the embryo floats.

Bleeding through the vagina, called overt or external bleeding, occurs 80 of the time, though sometimes the blood will pool behind the placenta, known as concealed or internal placental abruption.

You may recognize the chorion as the thin skin you peel away on a hard boiled egg.

If the chorion is the doors, then the allantois is essentially the lobby of the building.

PJC So when Tyrone tells me that the placenta is an ancient organ, I'm thinking, how do I demonstrate that?

In fact, our invention by our I mean we mammals one of our big inventions was the placenta.

The chorion and the allantois make sure the embryo has everything it needs and gets rid of anything it doesn't.

Structure In humans, the placenta averages 22 cm (9 inch) in length and 2 2.5 cm (0.8 1 inch) in thickness, with the center being the thickest, and the edges being the thinnest.

The decidua here is termed the decidua basalis and lies between the blastocyst and the myometrium and forms the maternal part of the placenta.

The first is the chorion, which is the protective layer that oxygen passes through after entering the shell's tiny pores.

And so when you realize that chemicals can pass the placenta and go into your unborn child, it made me start to think, what would my fetus say to me?

Diagnosis is made retrospectively by finding an organized blood clot or a depressed area on a delivered placenta.

For mothers to deliver oxygen to a fetus, it is necessary for the fetal hemoglobin to extract oxygen from the maternal oxygenated hemoglobin across the placenta.

And so when you realize that chemicals can pass the placenta and go into your unborn child, it made me start to think, what would my fetus say to me?

But it turns out that this ancient structure that separates us from other animals, the placenta, cannot evolve or adapt fast enough because of the rate that we're generating new chemicals that it's never seen before.

But the placenta is really kind of what the embryo develops inside of, and it's the interface, especially in humans and in mammals, between the developing fetus and its mother, so it kind of is the exchange mechanism that separates their two systems, but allows the necessary functions to go on between them.

And we're working a lot with the stem cells that we published on two years ago, stem cells from the amniotic fluid, and the placenta, which have those properties.

At the time the medical establishment believed the placenta would protect the foetus from toxins in the bloodstream, which is indeed the case with most chemicals.

Except in a few special circumstances In women, blood vessels grow every month to build the lining of the uterus during pregnancy, they form the placenta, which connects mom and baby.

The focus of this video is the fact that these cells, which at this point are they've differentiated themselves away from the placenta cells, but they still haven't decided what they're going to become.

Placental abruption is a significant contributor to maternal mortality worldwide early and skilled medical intervention is needed to ensure a good outcome, and this is not available in many parts of the world.

But it turns out that this ancient structure that separates us from other animals, the placenta, cannot evolve or adapt fast enough because of the rate that we're generating new chemicals that it's never seen before.

And this is not just philosophical, it's already known, that chemicals like diethylstilbestrol and estrogen, cross the placenta and effectively determine the likelihood of developing breast cancer and obesity and diabetes already when the baby's in the womb.

Trophoblasts (from Greek trephein to feed, and blastos germinator) are cells forming the outer layer of a blastocyst, which provide nutrients to the embryo and develop into a large part of the placenta.

The aromatase enzyme can be found in many tissues including gonads, brain, adipose tissue, placenta, blood vessels, skin, and bone, as well as in tissue of endometriosis, uterine fibroids, breast cancer, and endometrial cancer.