The Variability of the Form and of Dimensions of Small Glands of the Vestibule of the Vaginae in the Postnatal Ontogenesis

Abstract

The aim of the study is the determining of the variability of the forms and some dimensional indicators of the small glands of the vestibule of the vagina in the main periods of human postnatal ontogenesis by the macro-microscopic method. On 163 total vestibule preparations of the vagina of different ages, the shape and size of the small glands were studied. The glands were stained with methylene blue solution. The results of the study showed that the size parameters of the glands of the walls of the vestibule of the vagina, during the period of postnatal ontogenesis, increase in comparison with the neonatal period and reach the maximum ontogenetic value in the 1st period of mature age. Starting from the 2nd period of mature age, the size of the initial part of the small glands of the vestibule is reduced. Compared with the 1st period of mature age, the length of the initial section of the glands in old age decreases 1.5-1.7 times, the width of the initial section decreases 1.3-1.7 times. The shape of the glandular apparatus of the vestibule of the vagina also changes significantly throughout postnatal ontogenesis. In newborns and in early childhood, the glands are predominantly of the simplest form - with one initial part. The maximum diversity of the form of the small glands of the vestibule is at the age of 22-35 years. This is reflected in a decrease in the occurrence of simple-shaped glands with one initial section and an increase in the percentage of more complex glands with a significant number of initial sections.

Morphometric characteristics of the external diameter of fallopian tube funnel at different periods of life in parous women

“…Неизменно повышается научный интерес к пожилому, а также старческому возрасту женщин, что обусловлено увеличением продолжительности жизни современного человека. В течение жизни в организме женщины происходят различные морфофункциональные изменения, в том числе и в органах репродуктивной системы [4][5][6], крайне уязвимых к возрастным изменениям [7,8]. Старение женской репродуктивной системы характеризуется снижением качества и количества яйцеклеток, что приводит к уменьшению фертильности и потере эндокринной функции [9].…”