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Abstract

The results of this study showed that the tongue of the adult Iraqi domestic cat is divided into three regions of apex, body and root. The dorsal surface of all regions possesses four types of lingual papillae, two mechanical which are filiform and cylindrical papillae, while the other two types are taste papillae which are foliate and circumvallate papillae, while these papillae are absent on its ventral surface. The histological examination of all tongue areas revealed that it consisted of three tunica, the tunica mucosa and the tunica submucosa (the lamina propria) and the tunica muscularis. The tunica mucosa consisted of the epithelial lining, which is a stratified squamous epithelial tissue covering the lingual papillae, and it was keratinized in the filiform papillae, highly keratinized in the cylindrical papillae, small keratinized in the fungiform papillae, while non-keratinized in the circumvallate and fungiform papillae. The tunica submucosa (the lumina) consisted of loose connective tissue containing lingual glands in the lingual root region only, which are of two types: mucous and serous glands. The tunica muscularis appears in the form of bundles of muscle fibers in three directions, in which connective tissue spreads, and fatty tissue may spread between the fibers in the body and the lingual root regions.

Keywords

Lingual Papillae Domestic cat Felis catus Histological study

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The authors transfer the copyrights of their papers to the Iranian Society of Ichthyology. However, the information could be used in accordance with the Creative Commons licence (Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)

How to Cite
HUSSEIN, A. A., & IBRAHIM, M. K. . (2023). Histological study of lingual papillae on the tongue of the adult Iraqi domestic cat, Felis catus. Iranian Journal of Ichthyology, 10(Special Issue 1), 105–111. Retrieved from https://ijichthyol.org/index.php/iji/article/view/923
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