Structure and cytoarchitecture of the human thymus in adolescents and young adults

The paper presents the quantitative parameters characterizing the cytoarchitecture of structural and functional components of thymus of practically healthy humans in adolescent and juvenile age periods. It was shown, that despite significant structural reorganization, in adolescence the lymphocytopoietic function of thymus was still high. In juvenile age, structural changes became more intensive. These were accompanied with the disturbances of organ function, manifested by a significant drop in mitotic index and reduction of blast cell content.