Chorion

Chorion: what is it and how is it related to pregnancy

Chorion is one of the membranes surrounding the embryo in mammals and some other animals. It plays an important role in the development of the fetus and helps provide nutrition and protection during pregnancy.

The chorion is formed from the embryonic membrane and includes two layers: the outer layer, which is called the chorionic cable, and the inner layer, which is called the villous chorion. The chorionic villi sink into the uterus and form the placenta, which serves as a link between the mother and the fetus. Through the placenta, the fetus receives nutrients and oxygen, and also gets rid of metabolic waste.

The chorion also produces the hormone human chorionic gonadotropin (hCG), which is a key marker of pregnancy. HCG is synthesized by chorion cells already in the early stages of pregnancy, and its level in a woman’s blood increases every day. This hormone is used to diagnose pregnancy and also to monitor its progress.

Human chorionic gonadotropin also plays an important role in maintaining pregnancy. It stimulates the production of progesterone, which maintains the condition of the endometrium and prepares it to receive a fertilized egg. Without sufficient hCG levels, the pregnancy may fail.

The chorion is an important membrane that plays a key role in the development of the fetus and the maintenance of pregnancy. Its functions include feeding and protecting the fetus, forming the placenta, and producing the hormone hCG. Understanding the role of chorion in pregnancy helps to better understand the processes occurring in a woman’s body during this amazing period of life.

The chorion is the outer shell of the embryo, which is formed as a result of the fusion of trophoblast cells and syncytiotrophoblasts that form the chorionic sac. It consists of two layers: the outer - amniotic and the inner - connective tissue.

The chorion is of great importance for the development of the embryo. It contains blood vessels that provide the embryo with nutrients and oxygen. The chorion also produces hormones such as progesterone, which are essential for the development of the placenta and maintenance of pregnancy. In addition, the chorion plays an important role in protecting the embryo from infections and other harmful factors.