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1. Nerve endings of filliform, fungiform and vallate papillae of dorsal tongue mucosa of White-lipped peccary (Tayassu pecari): Neurohistological observations Terminação nervosa das papilas filiformes, fungiformes e valadas da mucosa dorsal da língua de queixada: observação neurohistológica

Author

Ii-sei Watanabe, Juliana Plácido Guimarães, Sebastião Aparecido Boleta, Sonia Regina Yokomizo Almeida, Martha Maria Righeti, Tatiana Carlesso Santos, Maria Angélica Miglino, and José Roberto Kfoury Junior

Subjects
Papila lingual, língua, inervação sensorial, queixada, Tayassu pecari, Lingual papillae, tongue, sensory innervation, silver impregnation, White-lipped peccary, Pecari tajacu, Veterinary medicine, SF600-1100
Abstract

The neurohistologic observations were performed using the specimens prepared by Winkelmann and Schmitt silver impregnation method. The tissues were fixed in 10% formalin solution and sections of 40µm thickness were obtained by Leica Cryostat at -30ºC. The sections of dorsal mucosa of White-lipped peccary tongue showed numerous filliform and fungiform papillae, and two vallate papillae on the caudal part. The epithelial layer revealed queratinized epithelial cells and the connective tissue papillae of different sizes and shapes. Thick nerve fiber bundles are noted into the subepithelial connective tissue of the papillae. The connective tissue of fungiform and vallate papillae contained numerous sensitive nerves fibers bundles forming a complex nerve plexus.As observações neuro-histológicas foram realizadas utilizando amostras preparadas segundo o método de impregnação por prata de Winkelmann e Schmitt. Os tecidos foram fixados em solução de formol a 10% e seções de 40µm de espessura foram obtidas em criostato Leica -30ºC. As seções da mucosa dorsal da língua de queixada revelaram numerosas papilas filiformes, fungiformes e duas papilas valadas sobre a parte caudal. A camada epitelial revelou células epiteliais queratinizadas e papilas de tecido conjuntivo de diferentes tamanhos e formas foram observadas. Espessos feixes de fibras nervosas são notados no tecido conjuntivo subepitelial das papilas. O tecido conjuntivo das papilas fungiformes e valadas contêm numerosos feixes de nervos de fibras sensíveis formando um plexo nervoso complexo.

Published
2009
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2. SEM and Neurohistological Observations of Nerve Endings in the Middle Region of the Tongue of the Collared Peccary (Tayassu tajacu): A Silver Impregnation Method

Author

Tatiana Carlesso dos Santos, Sonia Regina Yokomizo de Almeida, M. M. Righeti, Sebastião Aparecido Boleta, Ii-Sei Watanabe, José Roberto Kfoury, Juliana Plácido Guimarães, Marina O. Maia, and M. A. Miglino

Subjects
Dense connective tissue, Pathology, medicine.medical_specialty, General Veterinary, Nerve fibre, Collared peccary, Connective tissue, General Medicine, Anatomy, Biology, medicine.anatomical_structure, stomatognathic system, Tongue, medicine, Lingual papilla, Silver impregnation, Free nerve ending
Abstract

With 4 figures Summary The presence of lingual papillae and the nerve endings in the middle region of the tongue mucosa of collared peccary (Tayassu tajacu) were studied using scanning electron microscopy and light microscopy, based upon the silver impregnation method. The middle region of tongue mucosa revealed numerous filiform and fungiform papillae. The thick epithelial layer showed epithelial cells and a dense connective tissue layer containing nerve fibre bundles and capillaries. The sensory nerve endings, intensely stained by silver impregnation, were usually non-encapsulated and extended into the connective tissue of the filiform and fungiform papillae very close to the epithelial cells. In some regions, the sensory nerves fibres formed a dense and complex network of fine fibrils. The presence of these nerve fibrils may characterize the mechanisms of transmission of sensitive impulses to the tongue mucosa.

Published
2010

3. Nerve endings of filliform, fungiform and vallate papillae of dorsal tongue mucosa of White-lipped peccary (Tayassu pecari): Neurohistological observations

Author

Ii-Sei Watanabe, Sonia Regina Yokomizo de Almeida, Maria Angélica Miglino, Sebastião Aparecido Boleta, Tatiana Carlesso dos Santos, José Roberto Kfoury Junior, Juliana Plácido Guimarães, and Martha Maria Righeti

Subjects
Dorsum, Pathology, medicine.medical_specialty, Pecari tajacu, General Veterinary, integumentary system, urogenital system, sensory innervation, Nerve plexus, Connective tissue, Histology, Nerve fiber, Anatomy, Biology, Lingual papillae, medicine.anatomical_structure, stomatognathic system, Tongue, tongue, silver impregnation, medicine, White-lipped peccary, Silver impregnation, Lingual papilla
Abstract

The neurohistologic observations were performed using the specimens prepared by Winkelmann and Schmitt silver impregnation method. The tissues were fixed in 10% formalin solution and sections of 40µm thickness were obtained by Leica Cryostat at -30ºC. The sections of dorsal mucosa of White-lipped peccary tongue showed numerous filliform and fungiform papillae, and two vallate papillae on the caudal part. The epithelial layer revealed queratinized epithelial cells and the connective tissue papillae of different sizes and shapes. Thick nerve fiber bundles are noted into the subepithelial connective tissue of the papillae. The connective tissue of fungiform and vallate papillae contained numerous sensitive nerves fibers bundles forming a complex nerve plexus.

Published
2009

4. Angioarchitectural arrangements in corrosion cast of the nasal septum of the Mongolian gerbil

Author

C I Mizusaki, Ruberval Armando Lopes, Sebastião Aparecido Boleta, Bruno König Júnior, Wilson Roberto Campos de Azevedo, Maria Cecilia Kumiko Makiyama, Sandra Regina Frazatto Naccarato, Ii-Sei Watanabe, Mamie Mizusaki Iyomasa, and Renato Paulo Chopard

Subjects
Male, Mucous membrane of nose, Gerbil, Corrosion Casting, Microcirculation, Venules, otorhinolaryngologic diseases, medicine, Nasal septum, Animals, Nasal septum mucosa, Nasal Septum, Lamina propria, Chemistry, General Medicine, Anatomy, Arteries, Capillaries, Arterioles, Nasal Mucosa, medicine.anatomical_structure, Vascular network, Microscopy, Electron, Scanning, Female, Gerbillinae, Developmental Biology
Abstract

The three-dimensional architecture of the vascular network of the nasal septum of the gerbil rat was studied using the corrosive resin cast technique. The angioarchitecture of the nasal septum observed with scanning electron microscopy (SEM) showed that a vascular network is disposed in the lamina propria. The capillaries, arterioles, venules and arteries were closely observed in different areas of the nasal septum mucosa.

Published
1999

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