Academic literature on the topic 'Papilles filiformes'
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Journal articles on the topic "Papilles filiformes"
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Nitta, Cayo Y., Luana C. S. Silva, Maria A. Miglino, Carlos E. Ambrosio, Pedro P. Bombonato, and Rose E. G. Rici. "Ultraestrutura comparativa da língua do sagui-de-tufo-preto (Callithrix penicillata) e do bugio-preto (Alouatta caraya) em diferentes faixas etárias." Pesquisa Veterinária Brasileira 33, suppl 1 (December 2013): 75–84. http://dx.doi.org/10.1590/s0100-736x2013001300013.
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Para a análise e descrição comparativa da morfologia da língua e de suas papilas, bem como a distribuição destas, foram utilizados três animais de faixas etárias distintas (filhote, jovem, adulto), de duas espécies de primatas, Callithrix penicillata (sagui-de-tufo-preto) e Alouatta caraya (bugio-preto), ambas sendo observadas através da microscopia eletrônica de varredura. Os animais da espécie Callithrix penicillata eram procedentes de um criadouro comercial de animais selvagens em Atibaia/SP e vieram a óbito por causas naturais, e os da espécie Alouatta caraya eram provenientes do acervo do Laboratório de Anatomia Macroscópica da Faculdade de Medicina Veterinária e Zootecnia da Universidade de São Paulo (FMVZ-USP). Com o material analisado e a técnica empregada pôde-se constatar que as línguas dos saguis-de-tufo-preto e dos bugios-pretos analisadas apresentavam papilas linguais similares às descritas para outras espécies de primatas. As línguas possuíam diferenças morfológicas, principalmente para alguns tipos de papilas linguais, em detrimento do avançar da idade dos animais. De forma geral, foram observados quatro tipos de papilas linguais, sendo estas: filiforme, fungiforme, valada e folhada. As línguas dos bugio-pretos apresentavam características de animais com dietas herbívoras. Possuindo desta forma papilas filiformes com formatos variados (coroa, lança, multifilamentar), de acordo com as regiões da língua, e também robustas papilas, principalmente na proeminência lingual. Já as línguas dos saguis-de-tufo-preto possuíam características de animais onívoros. Com papilas filiformes em formato de coroa, grandes quantidades de papilas fungiformes e desenvolvidas papilas folhadas. Observou-se que as modificações das papilas linguais que ocorrem nos animais após o nascimento apresentaram correlação com a mudança nos tipos de alimentos consumidos. Sendo presumível então concluir que as dietas possuem relação direta para com as alterações morfológicas e estruturais das papilas linguais nos animais ora aqui analisados.
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Kokubun, Hanna Sibuya, Greyson V. Zanatta Esper, André L. Rezende Franciolli, Fernanda Menezes de Oliveira e. Silva, Rose Eli G. Rici, and Maria Angélica Miglino. "Estudo histológico e comparativo das papilas linguais dos cervídeos Mazama americana e Mazama gouzoubira por microscopia de luz e eletrônica de varredura." Pesquisa Veterinária Brasileira 32, no. 10 (October 2012): 1061–66. http://dx.doi.org/10.1590/s0100-736x2012001000021.
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O tipo de alimentação depende do ambiente em que o animal se encontra, sendo este um fator responsável pela alteração da morfologia, como a estratificação e o nível de queratinização da língua, e a funcionalidade da mesma. Dentre as estruturas morfológicas funcionais da língua, as papilas vêm merecendo destaque devido a sua estreita relação com a dieta. Foram utilizadas duas espécies de cervídeos: cinco Mazama gouazoubira e duas Mazama americana, dividindo-se a língua em três partes: ápice, corpo e raiz. Analisou comparativamente a língua de duas espécies por meio de microscopia de luz e eletrônica de varredura. As papilas filiforme, fungiforme e valada apresentaram na língua das duas espécies estudadas, e com a mesma distribuição, mudando apenas a quantidade e formato de papilas filiformes no ápice lingual e a quantidade e disposição das papilas valadas na raiz da língua, fator este que pode ser ligado à dieta dos animais. . Além disto, sua distribuição é semelhante à de outras espécies de herbívoros.
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Keogh, John K., and Brendan F. Keegan. "Ultrastructure of the podia of Amphiura chiajei and Amphiura filiformis and their role in feeding." Journal of the Marine Biological Association of the United Kingdom 86, no. 4 (June 15, 2006): 817–22. http://dx.doi.org/10.1017/s0025315406013737.
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Morphological study of the podia of the suspension feeding Amphiura filiformis and the deposit feeding Amphiura chiajei revealed sensory–secretory complexes in the podial epidermis, consisting of four cells, two secretory and two sensory. Large mucus cells were found in association, but not exclusively, with the sensory–secretory complexes. In A. filiformis, mucus cells stained positively for both acid and neutral mucopolysaccharides, while, in A. chiajei, these cells stained only for acid mucopolysaccharides. The surfaces of the arm podia in A. chiajei were relatively smooth, while the arm podia of A. filiformis bear papillae. The sensory–secretory complexes open through numerous paired pores, with each pair having an intervening cilium. Pores were restricted to the podial tip in A. chiajei, while in A. filiformis they are concentrated on the podial tip and on the papillae. Amphiura chiajei shows very little differentiation of the podia along the length of the arm. In A. filiformis, the distal podia have papillae throughout their entire length, with pores being found on the head region and the papillar tips. Here, the papillae are oriented in such a way (i.e. facing inward towards the ventral arm plate) as to increase the area of the filtering surface of the podium, serviced by the sticky secretions from the sensory–secretory complexes. The proximal podia are relatively simple in structure and are thought to function more in the transportation of mucus wrapped particles to the mouth rather than in their capture. The difference in structure of the podia and chemical composition of podial secretory cells are taken to reflect the difference in feeding styles of the two species.
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Goodarzi, N., and M. Azarhoosh. "Morpholoical Study of the Brandt’s Hedgehog, Paraechinus hypomelas (Eulipotyphla, Erinaceidae), Tongue." Vestnik Zoologii 50, no. 5 (October 1, 2016): 457–66. http://dx.doi.org/10.1515/vzoo-2016-0052.
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Abstract The morphology and histological structure of two adult Brandt’s hedgehog, Paraechinus hypomelas, (Brandt, 1836) tongue were examined by light and scanning electron microscopy. On the dorsal surface of the tongue, three types of papillae were observed: filiform, fungiform and vallate papillae. Apex and corpus of the tongue as well as the lateral surface of the corpus were covered with numerous filiform papillae with bifurcated tip, while the epithelium lining the ventral lingual surface was free from papillae. Discoid shape fungiform papillae were scattered over the entire surface of the lingual apex, corpus and lateral surface uniformly between the filiform ones without regional variation in number and size. Three elliptical or oval vallate papillae in an inverted triangle form were found on the root of the tongue. Each papilla had a lobulated and very irregular dorsal surface. Both fungiform and vallate papillae contain taste buds. The foliate papillae was absent. Overall, the present findings reveal that despite some similarities, the lingual papillae of the Brandt’s hedgehog as an omnivore animal has spices-specific characteristics compare to the Erinaceous auritus as an insectivore species. This finding provides a set of basic data about the morphology of tongue and its lingual papillae in Brandt’s hedgehog.
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Popel’, S. L., O. V. Baskevich, V. M. Zhurakіvskyi, O. Y. Zhurakіvska, I. V. Melnik, S. Z. Krasnopolskiij, and O. V. Atamanchuk. "Three-dimensional structure of the lingual papillae of healthy rats and rats with experimental diabetes mellitus (in the context of mechanism of development of diabetic glossitis)." Regulatory Mechanisms in Biosystems 8, no. 1 (February 12, 2017): 58–65. http://dx.doi.org/10.15421/021711.
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We studied the three-dimensional structure and patterns of distribution of the lingual papillae of healthy rats (the norm) and their changes in the process of development of diabetes mellitus І type. The research was conducted on 65 laboratory rats of the Weestar line. The research investigated the mucus shell and the microcirculatory network of the tongue. The distribution and three-dimensional structure of the papillae of the tongue were studied using a scanning electron microscope. It was found that there are 5 morphological subspecies of filiform papillae on the dorsal surface of body of the tongue: true filifom, flattened, thin and giant conical and brush-like. Isolated fungiform papillaе are unevenly distributed between filiform papillaе. The dorso-lateral edge of the dorsal lingual surface is covered by foliate papillae. The unique oval papilla vallate is located in the back-end of the middle line of the root of the tongue. The far back of the root of the tongue lacks papillae, is flattened and covered by squamous formations. The distribution and types of lingual papillae is similar in rats to other rodents. In the process of development of diabetic glossitis a reduction in the height of different types of papillae of the tongue was observed, and an increase in the amount of keratinized mass, which plays a role in the fixation of microflora on the surface of the mucus shell, which as a result may lead to development of inflammatory process in the tongues of rats with experimental diabetes mellitus. The stages of morphological and morphometric changes in the mucus shell and microcirculatory network of the tongues of rats with diabetes mellitus were investigated, the characteristic signs of these changes were marked. On the basis of morpho-functional changes of the tongues of rats with experimental streptozotocin induced diabetes mellitus, two stages of development of pathomorphological changes were distinguished: 1) reactive changes (2–4th week) and 2) destructive processes (6–8th week). At the end of the first stage there was a reduction in height of the filiform papillae and width of mushroom-like papillae in the mucus shell of the tongue, an increase in its keratinization, a considerable reduction in the number of cells in the deeper layers of the epithelium of the tongue and the adsorption capacity of superficial epіtheliocites diminished, a significant reduction in the diameter of path clearance of all departments of the microcirculatory network is traced here. At the end of the secondary stage, there was a reduction in the sizes of all papillae of the back of the tongue, in all links of the microcirculatory network there was a development of diabetic microangiopathy which is characterized: by narrowing of the arterial and exchange links on a background expansion of capacity link. The question of influencing the pathological process in the vessels of the microcirculatory network on the state of the mucus shell of the tongue in animals with experimental streptozotocin induced diabetes mellitus is discussed.
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Sönmez, Mehmet Fatih, Esra Balcioglu, Saim Ozdamar, and Birkan Yakan. "Papilas filiformes não têm botões gustativos." Brazilian Journal of Otorhinolaryngology 78, no. 4 (August 2012): 7. http://dx.doi.org/10.1590/s1808-86942012000400002.
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Martins, D. M., L. L. Pinheiro, V. C. Ferreira, A. M. Costa, A. R. Lima, R. E. G. Ricci, M. A. Miglino, and E. Branco. "Tongue papillae morphology of brown-throated sloth Bradypus variegatus (SCHINZ, 1825)." Arquivo Brasileiro de Medicina Veterinária e Zootecnia 66, no. 5 (October 2014): 1479–86. http://dx.doi.org/10.1590/1678-6343.
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The Bradypusvariegatus inhabits the forests of South America and feeds from leaves, branches and sprouts from different plants. Due to its diet and the lack of literature on the morphological aspect of Xenarthras, five Bradypusvariegatus tongues from animals which died from natural causes were evaluated, and they came from Pará State Museum Emílio Goeldi and were donated to the Laboratory of Animal Morphological Research (LaPMA) from UFRA, for revealing the different types of papillae and epithelial-connective tissue. Macroscopically, the tongues presented elongated shape, rounded apex, body, root, median sulcus in the root's apex, and two vallate papillae. The mucous membrane of the tongue revealed a keratinized stratified pavement epithelium, while the ventral surface of the tongue was thin and smooth, not provided with any type of papillae. However, the dorsal surface of the tongue was irregular with the presence of three types of papillae: filiform, fungiform and vallate papillae. The filiform papillae found were of a simple type, presenting a rounded base, irregularly distributed with a larger concentration and development on the tongue's apex and body. The fungiform papilla showed a practically smooth surface with irregular format, with the presence of gustatory pores; these were found all over the dorsal surface, with larger concentration at the rostral part of the apex. Only two vallate papillae were observed disposed in the root of the tongue, surrounded by a deep groove, and revealing several taste buds. The tongues from Bradypusvariegatus presented gustatory papillae similar to the ones described for other Xenarthras species and wild mammals.
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Abreu, Marilda Aparecida Milanez Morgado d., Luc Louis Maurice Weckx, and Cleonice Hitomi Watashi Hirata. "Papilas filiformes não têm botões gustativos: resposta." Brazilian Journal of Otorhinolaryngology 78, no. 4 (August 2012): 8. http://dx.doi.org/10.1590/s1808-86942012000400003.
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Reginato, Gabriela de Souza, Cristina de Sousa Bolina, Ii-sei Watanabe, and Adriano Polican Ciena. "Three-Dimensional Aspects of the Lingual Papillae and Their Connective Tissue Cores in the Tongue of Rats: A Scanning Electron Microscope Study." Scientific World Journal 2014 (2014): 1–6. http://dx.doi.org/10.1155/2014/841879.
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The aim of the present study was to describe the tridimensional morphological characteristics of the lingual papillae and their connective tissue cores (CTCs) in Sprague Dawley rats. Four types of papillae were reported on the dorsal surface. Filiform papillae were distributed on the tongue surface and after epithelial maceration a conic and multifilamentary shape of the CTCs was revealed. Fungiform papillae were reported on the rostral and middle regions covered by a squamous epithelium. After the removal of the epithelium, the shape of a volcano with the taste orifice at its top was noted. Foliate papillae were composed of five pairs of epithelial folds situated on the lateral-caudal margin of the tongue. After the removal of the epithelium, they were shown to be limited by thin laminar projections. The vallate papilla with an oval shape was present in the caudal region and delimited by an incomplete groove. The morphological characteristics of the lingual papillae of Sprague Dowley rats, three-dimensional SEM images, and the types of papillae on the dorsal surface were similar to those reported previously in other rodent mammals. The maceration technique revealed the details of extracellular matrix with varied shapes form of connective tissue cores.
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CIPOU, Mircea, Cristian MARTONOS, Adrian Florin GAL, Vasile RUS, Ion VLASIUC, Viorel MICLĂUȘ, and Aurel DAMIAN. "Histological and Morphometrical Study of the Filiform Papillae in the Domestic Rabbit (Oryctolagus cuniculus)." Bulletin of University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca. Veterinary Medicine 78, no. 1 (May 14, 2021): 63. http://dx.doi.org/10.15835/buasvmcn-vm:2020.0044.
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The domestic rabbit is often preferred as an experimental model in diverse research and especially those regarding pathologies of the oral cavity, both in human and veterinary medicine. From five domestic mixed breed rabbits, fragments were harvested from the three regions of the tongue: apex, body and root, for histological investigations. The samples were processed by embedding in paraffin, sectioned at a thickness of 5 µm and stained with Goldner’s trichrome method. The histological examination highlighted the presence of the filiform papillae on the entire dorsal surface of the tongue, with morphological particular carachteristics for each portion. The dimension of the filiform papillae of the rabbit’s tongue differs both regarding the length as well as the thickness and density. The shortest filiform papillae were found on the tip of the tongue, then the length increases progressively, reaching the maximum level on the middle portion and decreases in the last portion. The density also differs, in in the three compartments examined, being the highest in the anterior part and the lowest in the posterior part. The thickness of the filiform papillae is inversely proportional to their density. The thickness of the papillae is smaller where the density is higher and highest where the density is lowest. The upper surface of the filiform papillae is variably keratinized depending on the lingual segment. The papillae with the highest level of keratinization are arranged in the body part of the tongue, and those at the tip and root are slightly lower.
Dissertations / Theses on the topic "Papilles filiformes"
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Thomazo, Jean-Baptiste. "Perception de la texture en bouche : une approche biomimétique." Thesis, Sorbonne université, 2019. http://www.theses.fr/2019SORUS388.
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Le système langue-palais est capable de détecter de fines variations de texture en bouche là où le meilleur des rhéomètres est essentiellement aveugle. Une hypothèse pour expliquer cette remarquable sensibilité repose sur la présence de myriades de papilles filiformes sur la surface de la langue et de mécanorécepteurs à leur base. Pendant cette thèse, nous avons adopté une approche biomimétique reproduisant le fonctionnement de la cavité orale. La langue est un bloc d’élastomère décoré de cylindres assimilés à des papilles filiformes. Elle est placée sur une cellule de rhéoscope, combinaison d’un rhéomètre et d’un microscope. L’outil rotatif du rhéomètre joue le rôle du palais rigide, et impose l’écoulement du liquide testé. Nous avons imagé sous cisaillement de fluides simples la déflexion d’une papille et montré que celle-ci est proportionnelle aux contraintes visqueuses, en accord avec un modèle élastohydrodynamique récent. Nous avons sondé la déflexion d’une papille en présence de suspensions granulaires, modélisant des émulsions alimentaires. Nous avons montré que la présence de particules dans la phase continue modifie peu la déformation moyenne d’une papille, mais fortement son écart-type, surtout à cause des collisions particules/papille. Enfin, nous avons étudié l’effet des interactions entre papilles en variant leur densité surfacique. Cette déflexion diminue avec la densité. Un modèle phénoménologique, qui traite le tapis de papilles comme un milieu poreux effectif, décrit avec succès nos données sur toute la gamme de densitéThe tongue-palate system is able to detect fine texture variations in the mouth where the best rheometers are essentially blind. One hypothesis to explain this remarkable sensitivity is the presence of myriads of filiform papillae on the surface of the tongue and mechanoreceptors at their base. During this thesis, we developed a biomimetic approach reproducing the functioning of the oral cavity. The tongue is an elastomer block decorated with elongated cylinders assimilated to filiform papillae. It is placed on the bottom of the cell of a rheoscope, a combination of a rheometer and a microscope. The rotating rheometer tool plays the role of the rigid palate, and imposes the flow of the tested liquid. We have imaged while shearing simple fluids the deflection of a papilla and showed that it is proportional to the viscous stresses, in perfect agreement with a recent elastohydrodynamics model. We probed the deflection of a papilla in the presence of granular suspensions as models of food emulsions. We have shown that the presence of particles in the continuous phase slightly modifies the average deformation of a papilla, but strongly changes the standard deviation around this deformation, mainly because of particle/papilla collisions. Finally, we studied the effect of papillae interactions by varying their surface density. This deflection decreases with density. A phenomenological model that treats the papillae as an effective porous medium successfully describes our data across the entire density range
Book chapters on the topic "Papilles filiformes"
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Dhouailly, D., and T. T. Sun. "The mammalian tongue filiform papillae: a theoretical model for primitive hairs." In Trends in Human Hair Growth and Alopecia Research, 29–34. Dordrecht: Springer Netherlands, 1989. http://dx.doi.org/10.1007/978-94-011-7873-0_3.
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