[The structure of a population of smooth myocytes (aspects of the intraorganic organization of smooth muscle tissue)].

Comparative analysis of smooth muscular tissue of bronchi and of rectal pelvic region was performed using electron microscopic and cytophotometric methods. Smooth myocyte population of organs studied were demonstrated to include three cell types: small, medium and large ones. The population structure of smooth muscular tissue has similar pattern in bronchi and intestine, despite the established statistically significant diversity in their smooth myocyte volumetric parameters. Small smooth myocyte subpopulation was found to contain the cells considered to be smooth muscular tissue cambial elements by their ultrastructural and cytophotometrical characteristics.