[Problems of the classification and organization of minor glands located in the walls of the hollow internal organs].

The paper reviews the problems of the classification and anatomical structure of minor glands located in the walls of the organs of digestive, respiratory, and urogenital systems. A number of adequate terms for the description of the structure of the glands, is proposed. Some new data are presented, together with the description of most important regularities in the morphogenesis of various minor glands, including: similar pattern and heterochronism in the rate of ontogenetic development of minor glands, common manifestations of age involution of the minor glands in different organs, taking place at different ages, close microtopographical relations with the lymphoid structures in the organ's walls.