Filiform Papillae of Cat TongueBoshel J.a · Wilborn W.H.b · Singh B.B.a
aDepartment of Oral Biology, School of Dentistry, Medical College of Georgia, Augusta, Ga., USA; bDepartment of Anatomy, College of Medicine, University of South Alabama, Mobile, Ala., USA
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A pronounced species variation in the organization of filiform papillae has been observed. Preliminary histologic studies of cat tongue revealed marked regional variations in size, shape and organization of filiform papillae. Therefore, a correlated light microscopic, transmission and scanning electron microscopic study of tissue samples of representative areas of the cat tongue was undertaken for further elucidation. Results showed that filiform papillae on the tip of the tongue were short and exhibited several conical processes from the base of each papilla. In contrast, filiform papillae in the midportion of the dorsum of the tongue consisted of a large mound with a single sharp spinous process projecting posteriorly. In the region of the vallate papillae, the filiform papillae were shorter and more conical than those on the midportion of the tongue. In addition, keratohyalin granules in filiform papillae were comprised of an eosinophil spheroid with small basophil attachments.
© 1982 S. Karger AG, Basel
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