Abstract
The epithelium of the trachea of the Natrix maura snake was studied by conventional light microscopy and transmission and scanning electron microscopy. The epithelium is formed of basal, ciliated, endocrine and secretory cells. It shows different thickness and distribution of the cells, depending on the area (covering the cartilaginous or the membranous zone). Secretory cells show a morphology similar to that found in lizards but it is different from the mucous cells reported in the extrapulmonary airways of turtles, birds and mammals. The ultrastructure of the secretory cells is similar to that reported for serous cells in the airways of mammals. Intra-epithelial plasma cells are also found within the epithelium. The present results show that there are marked morphological differences between the tracheal epithelium of lizards and snakes and that of turtles, birds and mammals.
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- Brandtzaeg P. Immunobarriers of the mucosa of the upper respiratory and digestive pathways. Acta Otolaryngol. 1988 Jan-Feb;105(1-2):172–180. doi: 10.3109/00016488809119462. [DOI] [PubMed] [Google Scholar]
- Breeze R. G., Wheeldon E. B. The cells of the pulmonary airways. Am Rev Respir Dis. 1977 Oct;116(4):705–777. doi: 10.1164/arrd.1977.116.4.705. [DOI] [PubMed] [Google Scholar]
- Dalen H. An ultrastructural study of the tracheal epithelium of the guinea-pig with special reference to the ciliary structure. J Anat. 1983 Jan;136(Pt 1):47–67. [PMC free article] [PubMed] [Google Scholar]
- DiAugustine R. P., Sonstegard K. S. Neuroendocrinelike (small granule) epithelial cells of the lung. Environ Health Perspect. 1984 Apr;55:271–295. doi: 10.1289/ehp.8455271. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Huang H. T., Haskell A., McDonald D. M. Changes in epithelial secretory cells and potentiation of neurogenic inflammation in the trachea of rats with respiratory tract infections. Anat Embryol (Berl) 1989;180(4):325–341. doi: 10.1007/BF00311165. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Jeffery P. K., Reid L. New observations of rat airway epithelium: a quantitative and electron microscopic study. J Anat. 1975 Nov;120(Pt 2):295–320. [PMC free article] [PubMed] [Google Scholar]
- Pack R. J., Al-Ugaily L. H., Morris G. The cells of the tracheobronchial epithelium of the mouse: a quantitative light and electron microscope study. J Anat. 1981 Jan;132(Pt 1):71–84. [PMC free article] [PubMed] [Google Scholar]
- Pastor L. M., Ballesta J., Castells M. T., Perez-Tomas R., Madrid J. F., Marin J. A. A light and electron microscopic study of the epithelium of the extrapulmonary airways of Mauremys caspica and Lacerta lepida (Reptilia). J Submicrosc Cytol Pathol. 1988 Jan;20(1):25–36. [PubMed] [Google Scholar]
- Pastor L. M., Ballesta J., Hernandez F., Perez-Tomas R., Zuasti A., Ferrer C. A microscopic study of the tracheal epithelium of Testudo graeca and Pseudemys scripta elegans. J Anat. 1987 Aug;153:171–183. [PMC free article] [PubMed] [Google Scholar]
- Perry S. F., Bauer A. M., Russell A. P., Alston J. T., Maloney J. E. Lungs of the gecko Rhacodactylus leachianus (Reptilia: Gekkonidae): a correlative gross anatomical and light and electron microscopic study. J Morphol. 1989 Jan;199(1):23–40. doi: 10.1002/jmor.1051990104. [DOI] [PubMed] [Google Scholar]
- Plopper C. G., Halsebo J. E., Berger W. J., Sonstegard K. S., Nettesheim P. Distribution of nonciliated bronchiolar epithelial (Clara) cells in intra- and extrapulmonary airways of the rabbit. Exp Lung Res. 1983 Sep;5(2):79–98. doi: 10.3109/01902148309061506. [DOI] [PubMed] [Google Scholar]
- Robinson N. P., Venning L., Kyle H., Widdicombe J. G. Quantitation of the secretory cells of the ferret tracheobronchial tree. J Anat. 1986 Apr;145:173–188. [PMC free article] [PubMed] [Google Scholar]
- Tesík I. The ultrastructure of the tracheal epithelium in European common lizard (Lacerta agilis L.) and in sand lizard (Lacerta vivipara Jacq.). Anat Anz. 1984;155(1-5):329–340. [PubMed] [Google Scholar]
- Wilson D. W., Plopper C. G., Hyde D. M. The tracheobronchial epithelium of the bonnet monkey (Macaca radiata): a quantitative ultrastructural study. Am J Anat. 1984 Sep;171(1):25–40. doi: 10.1002/aja.1001710104. [DOI] [PubMed] [Google Scholar]