Morphology of the Dorsal Lingual Papillae in the Bush Dog (Speothos venaticus)

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Abstract

The dorsal lingual surface of a bush dog (Speothos venaticus) was examined by scanning electron microscopy (SEM). The tongue was about 7 cm in length. Filiform, fungiform and vallate papillae were found. The filiform papillae were distributed over the entire dorsal surface of the tongue. Each filiform papillae on the apical surface of the tongue had several conical processes, in the midportion were larger than those on the apex in size. In the region of the vallate papillae, the filiform papillae had not the conical processes and more larger than those on the midportion of the tongue. The fungiform papillae were present rounded bodies and more densely distributed on the tip of the ligual apex. There were 5 vallate papillae on both sides. The vallate papillae were located on both sides of the posterior end of the lingual body. Each papilla was surrounded by a groove and a crescent pad. In the dorsal surfaces of the papillae, small conical papillae were observed.

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Emura, S., Tamada, A., Hayakawa, D., Chen, H., & Shoumura, S. (2000). Morphology of the Dorsal Lingual Papillae in the Bush Dog (Speothos venaticus). Okajimas Folia Anatomica Japonica, 77(5), 137–142. https://doi.org/10.2535/ofaj1936.77.5_137

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