A morphological study of the tracheal epithelium of the snake Natrix maura.
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.[1]References
- A morphological study of the tracheal epithelium of the snake Natrix maura. Pastor, L.M. J. Anat. (1990) [Pubmed]
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