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Interventional Medicine and Applied Science
Authors: Ludmila Davydova, Gennadii Tkach, Alexey Tymoshenko, Alexey Moskalenko, Vitalii Sikora, Ludmila Kyptenko, Mykola Lyndin, Dmytro Muravskyi, Olena Maksymova, and Olga Suchonos


The purpose of this paper is to describe the research results of the morphological structure of white laboratory rats’ tongue at the macro-, micro-, and ultrastructural levels by scanning, light, and transmission electron microscopy.


Our results show that the tongue of these rats has a number of unique morphological features that are different from the tongue of other rodents consequently to allow identifying their species-specific features.


Our findings have shown the features of the tongue structure of white laboratory rats at micro-, macro-, and ultrascopic levels. The data analysis revealed that mucous membrane of the tongue contains a large number of papillae, such as fungiform, filiform, foliate, vallate, and multifilamentary papillae. Each has a different shape, size, and location. The tongue’s morphological feature consists of three types of filiform papillae, well-developed foliate and multifilamentary papillae, as well as one large and similar smaller circumvallate papillae. The muscle of the tongue contains a large number of mitochondria of different shapes and sizes. However, we have received data for a complete picture of structure of this organ that will be useful in further experimental and morphological studies of the white laboratory rats.

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