[Scientific and practical tasks of medical embryology in the prevention of perinatal pathology]

The paper analyzes the clinical aspects of medical embryology, emphasizes the topical problems of progenesis, fertilization, cleavage, gastrulation, implantation, and histo-, organo-, and systemogenesis. The current status of the studies into the mother-fetus system is explored. The new organizational patterns of the connection between theory and practice, which enables medical embryology to substantially affect the health care system are also discussed.