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https://doi.org/10.14300/mnnc.2025.20076

Anatomy and topography of the tongue at 19–22 weeks of human prenatal ontogenesis

[Morphology]
Tatyana Anatolyevna Alekseeva; Elena Dmitrievna Lutsay;

In the study determined the anatomical and topographical features of the human tongue at 19–22 weeks of prenatal ontogenesis. The material consisted of anatomical specimens from 30 human fetuses. The applied methods included macro- and microscopic dissection, histotopography, morphometry, and statistical analysis. It was established that all major anatomical structures of the tongue are fully formed by this gestational period. The tongue occupies a physiological arched position within the oral cavity, in contact with the hard palate and the body of the mandible. Morphometric parameters demonstrate isometric growth, with a predominance of dorsal surface area enlargement and no statistically significant sex differences.

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Keywords: tongue, prenatal ontogenesis, fetal anatomy, morphometry, histotopography