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A baby needs air, oxygen and, of course, essential nutrients, as you know, to sustain and develop in the mother's womb, or rather in the womb.
However, it should also be able to dispose of substances harmful to itself. Babies can purchase all these substances through the mother. All substance exchange between the mother and the baby occurs through the placenta. The placenta develops in the uterus at the same time as the baby, wombis located next to the baby.
It works until the birth during pregnancy and ends after the birth.
After the birth of the baby, within about five to ten minutes, the uterus is also ejected by contraction movements. The blood of the mother and the baby is confronted in the placenta, but they certainly do not interfere with each other. At this point, the mother's blood will be returned to the mother and the baby's blood will be returned to the baby once the necessary substances have been exchanged. In addition, this organ, the placenta, has other important functions such as hormone production. The baby's blood reaches the placenta through the umbilical cord and the mother's blood reaches the blood vessels in the uterus.
Infant blood, which reaches the placenta thanks to the vessels in the cord, receives the substances it needs and gives the harmful substances to the mother's blood. The substances taken by the baby are essential substances such as water, oxygen, salt, protein, calcium, iron and vitamins that are needed for its proper development and growth. It gives the mother the carbon dioxide and other substance residues that are not needed.
The baby will receive the necessary substances even if the mother does not have enough. She doesn't think if the mother will stay with her to get enough of these substances. The saying that Es all pregnancies cost a tooth ği stems from this situation. Which means; If there is not enough calcium in the mother's body, the calcium in the mother's teeth passes into the blood and tries to eliminate the baby's calcium deficiency.
Therefore, the mother loses a tooth in order to meet the needs of her baby.
Respiration of babies in their mothers' belly, not through the lungs. As you know, respiration is performed by taking oxygen and giving carbon dioxide. This situation is different in the baby. The baby draws oxygen directly from the mother's blood and leaves the mother's blood to the carbon dioxide that does not need it directly. In other words breathing through the mother's lungs.
Click here to watch videos of baby development in the womb week by week. / Week-week-pregnancy /