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Master's Dissertation
DOI
https://doi.org/10.11606/D.10.2016.tde-15032016-161014
Document
Author
Full name
Gabriela de Souza Reginato
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2015
Supervisor
Committee
Watanabe, Ii Sei (President)
Barbeito, Claudio Gustavo
Castelucci, Patricia
Title in Portuguese
Características morfológicas estruturais e ultraestruturais da língua do javali (Sus scrofa)
Keywords in Portuguese
Javali
Língua
Microscopia eletrônica
Morfologia
Papilas linguais
Abstract in Portuguese
Os Javalis da espécie Sus scrofa são mamíferos, omnívoros, não ruminantes, da ordem Artiodáctilos e da família Suidae. A língua possui um sistema altamente diferenciado de papilas, que apresentam amplas variações com influência direta das espécies. O objetivo do presente estudo consiste em descrever as características morfológicas estruturais e ultraestruturais do tecido lingual do Javali (Sus scrofa). As técnicas utilizadas foram microscopia de luz, microscopia eletrônica de varredura e microscopia eletrônica de transmissão possibilitando a aquisição de dados quantitativos e qualitativos. Quatro tipos de papilas foram encontrados na superfície dorsal da língua: filiforme, fungiforme, foliada e valada, sendo que as papilas filiformes estavam distribuídas por toda a superfície rostral da língua. Após a remoção epitelial as papilas conjuntivas filiformes revelaram-se cônicas. As papilas fungiformes foram encontradas na região medial e latero-caudal, assim como as papilas foliadas que possuem de três a quatro sulcos irregulares. Após a remoção epitelial as papilas conjuntivas fungiforme e foliada apresentaram projeções lineares em sua superfície. A papila valada foi encontrada na região caudal da superfície dorsal da língua, possui um formato oval e é rodeada por um sulco completo e após a remoção do tecido epitelial foi possível observar alguns ductos nas paredes do sulco. Os componentes ultraestruturais do epitélio dorsal da língua são: camadas epiteliais queratinizada, córnea, granular, espinhosa e basal, uma grande quantidade de colágeno foi encontrado na lâmina própria, assim como vários desmossomos e grânulos que queratohialina na camada granular. Conclui-se que as características morfológicas das papilas linguais do Javali assemelham-se com a de outros mamíferos
Title in English
Morphological structural characteristics and ultrastructural the tongue of wild boar (Sus scrofa)
Keywords in English
Electron Microscopy
Lingual papillae
Morphology
Tongue
Wild Boar
Abstract in English
The boar of the species Sus scrofa are omnivorous, non-ruminant mammal of the order Artiodactyla and family Suidae. The language has a highly differentiated system of taste, which feature large variations with direct influence of species. The objective of the present study is to describe the structural and ultrastructural morphological characteristics of lingual tissue of wild boar (Sus scrofa). The techniques used were light microscopy, scanning electron microscopy and transmission electron microscopy, enabling the acquisition of quantitative and qualitative data. Four types of papillae were found on the dorsal surface of the tongue: fungiform, filiform, foliate and vallate, the filiform papillae were distributed over the entire surface rostral of the tongue, which after removing the epithelial surface revealed conical connective tissue core. The fungiform papillae were found in the middle and latero-medial region, as well as the foliate papillae which have three or four irregular grooves. After removing the epithelial surface, the connective tissue core of the fungiform papillae and foliate papillae presented linear projections on their surface. The vallate papillae were found in the caudal region of the dorsal surface of the tongue, have an oval shape and are surrounded by a full groove and after removing the epithelial tissue it was possible to observe some ducts in the walls of the groove. The ultrastructural components of dorsal epithelium of the tongue are: keratinized epithelial layers, containing cornea, granular, and basal cells, as well as a large amount of collagen found in the lamina propria, and various desmosomes and gap junctions and keratohyaline beads on granular layer. We conclude that the morphological characteristics of the Boar lingual papillae are similar to that of other mammals
 
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Publishing Date
2016-04-11
 
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