Once in the uterus, the fertilized egg begins to divide. Part of the cells becomes the embryo, and the rest arranged in the empty space - the uterus. First, cells builders would melt the mucosa of the posterior wall of the uterus, forming a cavity. In this "outhouse" and settles the embryo. To supply necessary nutrients ibid grown "garden" of the fibers, which grow into the vessels of the embryo. This sets the exchange between the blood and maternal. This placenta is called the chorion. Full body, it will be only at the end of the first trimester.
From the diary of the placenta
At 14-16 week chorion will take the form of a disk (which was named by the ancient Greeks placenta - "the cake"). Central big NAP will develop in the umbilical cord and will soon reach half a metre
in length.
Let's give a word to the children place the placenta.
9-21 week
Cheers! The embryo has become a fetus, and I look more like myself! So many responsibilities - head spin...
First, we need to develop female hormones, and in vast quantities, in order
the baby was not born prematurely.
Mommy, give heed to my feelings during this period. If you feel the slightest pain in the lower abdomen or appears spotting run to the doctor! I'm just learning to produce estrogen and progesterone.
Secondly, the profession of a customs officer. Do not let the harmful substances, as well as cells of the mother's immune protection, so as to avoid rejection of the fetus. But no matter how I try to hold nicotine, alcohol, drugs and toxic smells I will never learn. As 120 million years ago, when nature has invented me, these "pleasures". But oxygen, nutrients and mother's antibodies to protect the baby from diseases'll skip with pleasure!
Third, I perform the functions of a sewage disposal: remove waste products crumbs.
22-30 weeks
I have a real placenta. Grow quickly and completely familiar with the work: an uninterrupted supply of hormones, strictly selected substances for a child.
Mommy, please, walk a little longer! Feel like moving baby? So it provides a greater amount of oxygen to be born smart and healthy. Help him: often be on the air.
30-33 weeks
The first degree of maturity! Sorry, diary, still can't write, very busy!
34-37 weeks
Well, the second degree of maturity. I do an excellent job with all his numerous duties
and cool rose. Imagine a cake with a diameter of 15-20 cm, a thickness of 2 to 4 inches and weighing a pound. It's me!
38-40 weeks
The third degree of maturity. Stopped growing and seems to be lost. Nothing, but the kid for all time increased almost 800 times and have long outgrown me. Cheers, soon giving birth! And I became harder to do the work, appeared salt deposits... Age...
41 week
Wow bout! Hey, young man, you go out? Now, come faster! I? Only after you!
Obstetrician-animator
Soon after the birth of a baby is a spasm of the arteries and veins of the umbilical cord, terminating communication with the placenta. Baby is ready to self-breathing. But while the umbilical cord is not cut, doctors, midwives, to ensure that the child and the child was at the same level, otherwise some of his blood may flow back. And it is harmful for the newborn.
The umbilical cord cut off only when its surge to the baby and some time was given oxygen at the same time from two sources.
15-30 minutes is born the placenta. Her fate? Everything happens for a reason...
Childbirth in the hospital the placenta is sometimes sent for recycling for further use in the pharmaceutical industry and cosmetics. Its extract has burns and anti-inflammatory effect, prevents aging.
Childbirth in the village even now, the placenta is buried and put on him a tree, which in the future will be to protect his master. And in China the placenta is dried and prepare the drug, prolonging youthfulness.
You must make sure that the placenta was born fully. If not, the doctor will remove remaining in the uterus of the hand.
In the place!
Sometimes the placenta attaches to the uterine wall is lower than needed for normal delivery. Thus fully or partially blocked orifice of the uterus, through which should leave the child.
A similar situation is observed up to 28 weeks in every four pregnant. Fortunately, the children's place has an amazing ability to change their position as the growth of the uterus. To the 37th week, the majority of pregnant everything becomes normal. In time to come ultrasound! After all, if the placenta is unfavorable for delivery, you will need a caesarean section.
What is placental insufficiency?
If the placenta does not cope with its function, there is placental insufficiency - a condition that can cause abnormalities in fetal development. How to protect yourself from this disease?
You have nothing to be afraid of placental insufficiency, if you're not using such harmful substances, like alcohol and drugs, don't smoke, you don't have to endocrine disorders and other chronic diseases.
Come all ultrasound and, on the recommendation of the doctor, a Doppler study of blood vessels in the placenta. In case of any violations, you can promptly start the necessary treatment.
According to the magazine "Waiting for baby"
Source:
here
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