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The mysteries of the placenta, the amazing companion of the fetus


DECRYPTION - Formed at the very beginning of pregnancy, this organ in its own right keeps a part of a mystery.

“For the placenta - and therefore for the fetus - everything depends on the first trimester,”

stresses Thierry Fournier, director of the Inserm Physiopathology and human placental pharmacology unit.

Any problem during the major stages of its development, before the 14th week of pregnancy, may have consequences later in the pregnancy. "

When this begins, the production of a functional placenta is therefore the first objective of the new intruder: its development begins barely 7 days after fertilization!

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The task is major: it is necessary to create a network of exchanges with the maternal blood which will bring nutrients and oxygen, but also will form a barrier against the immune system of the mother or against the pathogenic or toxic agents which can circulate in her organism. .

An organ in its own right, sexed like the fetus it accompanies, the placenta also rapidly produces hormones in order to shape the maternal organism so that it provides all the elements.

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Source: lefigaro

All tech articles on 2021-05-12

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