Поступила в редакцию 21.05.2014 Получена после доработки 22.07.2014 AGE CHANGES OF CELLULAR COMPOSITION OF RAT MAJOR PELVIC GANGLION IN NORM AND AFTER DESYMPATHIZATION O. <...> Rumyantseva The neurons of major pelvic ganglion (MPG) were studied in 140 female Wistar rats of different ages (from newborns up to 180 days). <...> For desympathization, experimental animals were daily intraperitoneally injected with 0.3 ml guanethidine (60–70 mg/kg) from Day 3 to Day 29. <...> The periods of intensive growth in the size of neurons were detected: from Day 5 till Day 10, from Day 14 Морфология. <...> Final stabilization of MPG neuronal populations occurred at Day 90. <...> Desympathization caused the death of a part of a population of neurons, and disruption of normal age-related dynamics of their growth. <...> From Day 90 till Day 180, the cross-sectional area of neurons decreased, becaming lower than in control, indicating a secondary neurodystrophic process. <...> The absence of class 5–7 large neurons after desympathization reflects not only the delay of their growth, but also the inability of surviving neurons to compensatory hypertrophic reactions as a result of disruption of trophic influences. <...> Key words: pelvic ganglia, neurons, guanethidine, desympathization, histograms Department of Histology, Cytology and Embryology; Department of Human Anatomy, Yaroslavl’ State Medical Academy © Коллектив авторов, 2014 УДК 612.178:612.65 П. <...> Аникина3 МОРФОЛОГИЧЕСКИЕ ОСОБЕННОСТИ НЕЙРОПЕПТИД Y-ЕРГИЧЕСКОЙ ИННЕРВАЦИИ СЕРДЦА В ПОСТНАТАЛЬНОМ ОНТОГЕНЕЗЕ 1 Кафедра нормальной физиологии (зав. — проф. <...> Т. А. Румянцева), Ярославская государственная медицинская академия; 3 кафедра анатомии, физиологии и охраны здоровья человека (зав. — проф. <...> Т. Л. Зефиров), Казанский федеральный университет Нейропептид Y (НПY <...>