How is placental thickness to return a responsibility

summary

Many young mothers, because of their first pregnancy, don't know much about many things, such as placenta. Let's share with you how the thickness of placenta is.

How is placental thickness to return a responsibility

first. Placenta is a transitional organ for the exchange of substances between mother and child, which is formed by the combination of embryo membrane and maternal endometrium during the pregnancy of post mammalian and mammalian mammals. The fetus develops in the womb and depends on the placenta to obtain nutrition from the mother, while both sides maintain considerable independence. The placenta also produces a variety of hormones to maintain pregnancy, which is an important endocrine organ.

Secondly, if the thickness of the placenta is 3.6-3.8 cm, it is the normal thickness of the placenta, which can be seen by B-ultrasound, generally no more than 5 cm. Membranous placenta is characterized by large and thin placental area and easy bleeding in the second trimester of pregnancy. If it is a small placenta can lead to intrauterine growth retardation, and low birth weight infants.

Finally, there are two independent circulatory systems in the placenta (even in the blood sinus endothelial type, such as the late embryo of rabbit, there is still a layer of endothelial cells to separate the two sides). The villus can be regarded as a semipermeable membrane, and the area of all villi in contact with the maternal blood is 7-14 square meters. When the maternal blood flows between the villi and the blood in the villus, the material exchange can be carried out.

matters needing attention

The placenta provides nutrition for the child, so that the mother can connect with the child. In the diet, we should reduce the cold food.