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vol.17 issue1MESO AND MICROSCOPIC STUDY OF THE FACIAL VEIN AND ADJACENT TISSUESSUPERIOR THYROID ARTERY: ORIGIN, COLLATERAL AND GLANDULAR BRANCHES author indexsubject indexarticles search
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Revista chilena de anatomía

Print version ISSN 0716-9868

Abstract

MARTINEZ, Marcelo et al. MORPHOLOGICAL STUDY OF THE LARYNX OF CHINCHILLA (Chinchilla laniger). Rev. chil. anat. [online]. 1999, vol.17, n.1, pp.39-45. ISSN 0716-9868.  http://dx.doi.org/10.4067/S0716-98681999000100006.

SUMMARY: The study was undertaken to collect data on morphological features of the larynx of the chinchilla. This larynx is composed by cartilaginous, membranous and muscular portions and has 9 mm of medium lenght. In the lateral wall there are the vestibular and vocal folds; the laryngeal ventricle are present in the region between the vestibular and vocal folds consisting in a moderate depression. The laryngeal epithelium was studied by light and scanning microscopic methods: the surface of the supraglottic space is covered predominantly by stratified epithelium with cobblestone appearance while it may be seen a typical pseudostratified epithelium composed by ciliated and non-ciliated cells on the subglottis area. However, near to the caudal part of the vocal fold the epithelium gradually changes through the stratified squamous to the intermediated type demonstrating paving-stone appearance.The subepithelial layer was composed by elastic and collagen fibers constituting an intricated meshwork.

Keywords : Larynx; Vocal cord; Scanning electron microscopy; Chinchilla laniger.

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