HISTOLOGICAL AND MORPHOMETRIC FEATURES OF THE MUCOCILIARY SYSTEM OF THE MUCOUS MEMBRANE OF THE INFERIOR AND POSTERIOR WALLS OF THE FRONTAL SINUS IN A NORM

Abstract

The present paper was aimed at the study of the peculiarities of the mucociliary system of the mucous membrane normal human frontal sinus (FS). Object and methods. Cadaveric material obtained from people of both sexes aged 26 to 75 years who died of causes not related to pathology of the paranasal sinuses has been studied in accordance with international guidelines for biological research. Results. The investigated glands are complex alveolar-tubular glands, which consist of a system of excretory ducts with the acini. The findings of our study showed a certain difference between the structure of the acini of the glands on the inferior wall, where they were divided into 2 types. The first type is characterized by the formation of the acini by the cuboidal cells, and the second type by the pyramidal cells. By the secretory products, the glands of the inferior wall are defined as proteinaceous and mucous, and the glands of the posterior wall are mixed. The morphometry showed that the values of the average thickness (μm) of the submucous layer of the posterior wall (PW) on both sides were by 74% lower compared to the parameter for the inferior wall (IW). No significant difference in the outer diameter (μm) of the acini of the glands of the specified walls on both sides was found.