Natan C. Carvalho 2. Bruno L. Anjos 3. Santos 4. Postal , Uruguaiana, RS , Brasil.

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Natan C. Carvalho 2. Bruno L. Anjos 3. Santos 4. Postal , Uruguaiana, RS , Brasil. A laringe de C. Cerdocyon thous crab-eating fox is the most common wild canid in South American territory. The aim of this paper was to describe macroscopic, microscopic and comparative morphology of the larynx of this species. Analyses of larynges of sixteen specimens four males and twelve females revealed the topography, conformation, morphometrics, intrinsic muscles and histological characteristics.

The larynx was positioned ventral to the axis and comprised one cricoid and one thyroid cartilage hyaline , one epiglottis elastic and a pair of arytenoids mixed. A pair of sesamoid cartilages was identified between the corniculate processes and the cricoid lamina. Morphometry revealed that thyroid cartilage was the largest. There were no conclusive signs of sexual dimorphism in the larynx of this species.

Squamous stratified epithelium predominated and underwent transition to ciliated pseudo-stratified at the level of caudal thyroid and rostral cricoid portions. By comparison, larynx of C. As 23 medidas foram adaptadas dos trabalhos de Wysocki et al.

Palato mole P. Todas as laringes de C. Hematoxilina e eosina. As cartilagens aritenoides apresentaram-se pares, com forma irregular e compreenderam os processos cuneiforme, corniculado, vocal e muscular Fig. O curto processo corniculado limitou dorsalmente a entrada da laringe. A cartilagem tireoide foi a maior da laringe. A cartilagem cricoide formou um anel completo Fig. Em Didelphis sp. O aparato hioideo de C. O osso tireo-hioideo articulou-se dorsalmente com o corno rostral da cartilagem tireoide e ventralmente com o osso basi-hioideo.

As aritenoides de C. Tayama et al. No presente trabalho optou-se por seguir o protocolo de medidas de Wysocki et al. As medidas das cartilagens tireoide e cricoide de C.

Tuohimaa et al. Observou-se que a epiglote de C. Segundo Bertassoli et al. Deste modo, os processos corniculados curtos das aritenoides de C. Em Dasyprocta sp. Oliveira et al. Por fim, pode-se inferir que a laringe de C. Adaro L. Unipar Bacha Jr W. Color Atlas of Veterinary Histology. Lippincott Williams and Wilkins, Philadelphia. Banks W. Barker E. The larynx as an immunological organ: immunological architecture in the pig as a large animal model. Bertassoli B. Brandt J.

Observationes anatomicae de instrumento Vocis mammalium. Charuta A. Evaluation of sexual dimorphism in horses on the basis of the morphology and morphometry of the larynx. Cheida C. Ordem Carnivora, p. In: Reis N. Nelio R. Delahunty J. The laryngeal saccule. Dyce K. Elsevier, Rio de Janeiro. Eckel H. Dimensions of the laryngeal framework in adults. Anatomical characteristics of the larynx in giraffe Giraffa camelopardalis.

Eurell J. Veterinary Histology. Evans H. Miller's Anatomy of the Dog. Saunders Elsevier, St Louis. Fink B. Laryngeal Biomechanics. Harvard University Press, Cambridge. Fludge M. Endotracheal intubation, p. In: Silverstein D. Saunders Elsevier, Missouri. Frey R. Nordic rattle: the hoarse vocalization and the inflatable laryngeal air sac of reindeer Rangifer tarandus. Hare H. In: Getty R. Guanabara Koogan, Rio de Janeiro. Harrison D. The Anatomy and Physiology of the Mammalian Larynx.

Cambridge University Press, Cambridge. Hately W. The pattern of ossification in the laryngeal cartilages: a radiological study. Hunter L. Carnivores of the World. Princeton University Press, Princeton. Nomina Anatomica Veterinaria. Editorial Committe, Knoxville. Kasper C. Pacartes, Porto Alegre.

Kim M. Comparison of human, canine, and ovine laryngeal dimensions. Rhinol Artmed, Porto Alegre. Larson J. Movement of the epiglottis in mammals. Maue W. Cartilages and ligaments of the adult human larynx.


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