Educational and Methodological Manual . Nizhny Novgorod: Nizhny Novgorod State University, 2012. - 98 s . The present manual contains 2 sections: general and particular age morphology. In the section of general age morphology, problems and modern methods of the subject are considered. Information on acceleration of growth and development is presented, the most integral criteria of biological age are considered. In the section of private age morphology, the concept of age periodization is given, attention is paid to issues devoted to critical periods of ontogenesis, risk factors in the development of specific systems and organs.