AGE FEATURES OF THE MORPHOLOGY OF TONGUE GLANDS
Tongue provides a person with many functions, participates in speech, taste receptions (the peripheral part of the taste analyzer), the initial stages of digestion and moisturizes the mucous membrane of the oral cavity. The lingual glands, along with others, produce saliva, but in a smalt amount, in comparison with the large salivary glands. The purpose of the study is to study the number of lingual glands and their morphological features in people of different ages and sex under normal conditions. Macroscopic, histological methods and parametric statistics methods have been used to study the glands of the tongue, obtained from the corpses of 149 men and 150 women who died from the period of the newborn to 96 years, for reasons of asphyxia incompatible with the life of injuries. On total preparations of the tongue, the glands were electrically stained in a 0.5% solution of acetic acid with 0,05% methylene blue solution in tap water. We studied the total number, length and width of the initial sections of the glands of different parts of the tongue - at its anterior, middle and posterior third, and also in the organ as a whole. For histological examination, the gland was further studied on preparations obtained after evisceration (139 cases). As a result of the study, it was revealed that the size and quantity of lingual glands in postnatal ontogenesis vary in the direction from the tip to the root of the tongue (increase from front to back). In this case, the glands of the root of the tongue produced a saliva of a mucous nature. Given that ensuring the oral phase of swallowing requires the presence of a mucous secretion in the oral cavity, the morphological changes of lingual glands in the thickness of the tongue revealed by us are absolutely physiologically necessary. Changing the size and number of glands throughout the mucous membranes of internal organs is recognized as one of the patterns of their structural organization.