The functions of the placenta:
Gas exchange occurs through the placenta: oxygen penetrates from the mother’s blood to the fetus, and carbon dioxide is transported in the opposite direction.
The fetus receives through the placenta the nutrients necessary for its growth and development. In addition, with its help, the fetus gets rid of the products of its vital activity.
The placenta provides immunological protection of the fetus, delaying the cells of the mother’s immune system, which, having penetrated the fetus and recognized a foreign object in it, could trigger its rejection reactions. At the same time, the placenta passes maternal antibodies that protect the fetus from infections.
The placenta plays the role of the endocrine gland and synthesizes necessary to maintain pregnancy, growth and development of the fetus.
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.