Resumen de Scanning electron microscopic study of the hard palatine mucosa of opossum (didelphis albiventris
Marcelo Martinez, Ii-Sei Watanabe, Francisco E. Martinez, Nivalde Antônio Basso, Osmir Ribeiro, Elisa Aparecida Gregório
- español
Las características tridimensionales del tejido conectivo epitelial de la mucosa del paladar duro fueron estudiadas usando el método de NaOH. Los tejidos fueron cuidadosamente removidos y fijados en solución de Karnovsky modificado por 12 h a 4ºC. Luego, los especímenes fueron preparados para microscopía electrónica de barrido. Los resultados revelaron que la superficie de la mucosa del paladar duro presenta epitelio escamoso estratificado queratinizado y varios pliegues palatinos transversos. En la región anterior, se observaron algunas protrusiones epiteliales alargadas o punteadas. La lámina propia mostró numerosas papilas de tejido conectivo en froma de elevaciones paralelas. A mayor aumento, se observaron gruesos haces de fibras colágenas
- English
The three-dimensional characteristics between the epithelium-connective tissue of palatine mucosa of opossum were demonstrated using NaOH method. The tissues were carefully removed and fixed in modified Karnovsky solution for 12 h at 4ºC. Then, the specimens were prepared for scanning electron microscope. The results revealed that the surface of hard palatine mucosa presents stratified squamous keratinized epithelium and several transverse palatine plicae. In the anterior region, some elongated or pointed epithelial protrusions were noted. The lamina propria showed numerous connective tissue papillae disposed in parallel ridges. At high magnification, the thick bundles of collagen fibers were observed.
