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	Provedor de dados International Journal of Morphology (3) Autor Casanave,Emma Beatriz (2) Sidorkewicj,Nora Silvia (2) Basso,Ana Paula (1) Casanave,Emma B (1) Sidorkewicj,Nora S (1) Squarcia,Silvia Margarita (1) Mais... Palavra-chave Middle ear (3) Chaetophractus vellerosus (2) Chaetophractus villosus (2) Zaedyus pichiy (2) Armadillos (1) Auditory bulla (1) Fossorial (1) Fossorial mammals (1) Non-destructive methods (1) Tympanic bulla (1) Mais... Tipo do documento Journal article (3) Ano 2017 (1) 2012 (1) 2007 (1) País Chile (3) Idioma Inglês (3)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última Morphology of the Middle Ear in Three Species of Armadillos (Dasypodidae, Xenarthra) from Argentina International Journal of Morphology Sidorkewicj,Nora S; Casanave,Emma B. Middle ears of adult Chaetophractus villosus, C. vellerosus and Zaedyus pichiy were studied for qualitative and quantitative comparisons. A great similarity in the overall shape of the middle ear structures was observed in the three species. The well-developed auditory bulla was formed by the intimate fusion of the tympanic and entotympanic. Internally, a recessus meatus and a wide epitympanic recess extending dorsally into an epitympanic sinus were recognized. The petrosal promontorium, nearly triangular, was the most salient feature in the tympanic cavity. The auditory ossicles corresponded to the transitional middle ear type. The m. tensor tympani and the m. stapedius were conspicuous. The lack of a stapedial artery was confirmed in all cases. The... Tipo: Journal article Palavras-chave: Chaetophractus villosus; Chaetophractus vellerosus; Zaedyus pichiy; Fossorial; Middle ear. Ano: 2012 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022012000400038 The Hypertrophy of the Tympanic Bulla in Three Species of Dasypodids (Mammalia, Xenarthra) from Argentina International Journal of Morphology Squarcia,Silvia Margarita; Sidorkewicj,Nora Silvia; Casanave,Emma Beatriz. The morphology and relative size of the tympanic bulla of three species of dasypodids from Argentina, Chaetophractus villosus, C. vellerosus and Zaedyus pichiy, were studied. The bulla was observed to be morphologically similar and evidently hypertrophied in the three species. The degree of hypertrophy was higher in C. vellerosus and C. villosus than in Z pichiy. By means of ANCOVA it was clear that, although C. villosus has a bigger skull than C. vellerosus, the relative size of their tympanic cavity was similar in both species. On the other hand, the skull of C. vellerosus and Z pichiy are of similar size but the bulla was relatively shorter in the later Tipo: Journal article Palavras-chave: Chaetophractus villosus; Chaetophractus vellerosus; Zaedyus pichiy; Middle ear; Tympanic bulla. Ano: 2007 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022007000300021 Methods for Estimating the Volume of the Tympanic Bulla in the Big Hairy Armadillo Chaetophractus villosus (Mammalia, Xenarthra, Dasypodidae) International Journal of Morphology Basso,Ana Paula; Sidorkewicj,Nora Silvia; Casanave,Emma Beatriz. Two methods of measurement of bullar dimensions (callipers and scaling from digital images) and subsequent application of four volume formulae (rectangular prism, cylinder, ellipse and elliptical cone) were tested to find the most appropriate non-destructive method for estimating the bullar volume in Chaetophractus villosus. Material for the study consisted in clean adult skull (n=22). Real volume was obtained from latex casts of the tympanic bulla. Each estimation was corrected by a factor based on the differences between the estimated and the real volumes. Highest accuracy (5-7 % of underestimation) and precision (coefficient of variation: 13.27 %) were obtained from callipers and application of rectangular prism, cylinder and ellipse formulae. The... Tipo: Journal article Palavras-chave: Fossorial mammals; Armadillos; Middle ear; Auditory bulla; Non-destructive methods. Ano: 2017 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022017000100021 Registros recuperados: 3 Primeira ... 1 ... Última

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