Organs-promoters of human embryonic morphogenesis
Aim: to reveal the importance of promoter organs in the initiation and formation of organogenesis loci in the human embryo. Material and Methods: 131 human embryos at 12-23 Carnegie stages, obtained during medical abortion in healthy women with their informed consent in a medical facility in Tyumen, were studied using histological methods (Mayer’s hematoxylin and eosin, McManus PAS reaction) and electron microscopy (transmission electron microscopy). A morphometric analysis of the actual material was carried out. Conclusion: in the embryonic period of prenatal ontogenesis, promoter organs are formed that control the initiation and activity of local organogenesis in the body of the human embryo. The category of promoter organs of embryonic morphogenesis includes the notochord, the brainstem, and the mesonephric duct.