RESUMO
The three-dimensional architecture of the vascular network of the nasal septum of the gerbil rat was studied using the corrosive resin cast technique. The angioarchitecture of the nasal septum observed with scanning electron microscopy (SEM) showed that a vascular network is disposed in the lamina propria. The capillaries, arterioles, venules and arteries were closely observed in different areas of the nasal septum mucosa.
Assuntos
Capilares/ultraestrutura , Gerbillinae/anatomia & histologia , Microcirculação/ultraestrutura , Mucosa Nasal/irrigação sanguínea , Septo Nasal/irrigação sanguínea , Animais , Artérias/ultraestrutura , Arteríolas/ultraestrutura , Molde por Corrosão , Feminino , Masculino , Microscopia Eletrônica de Varredura , Vênulas/ultraestruturaRESUMO
The three-dimensional architecture of the vascular network of the rat's lingual papillae has been studied employing the corrosive resin cast technique. The casts of the microvasculature of these types of papillae (the small conical filiform, true filiform, fungiform and vallate papillae) have been observed under scanning electron microscopy (SEM). The microvascular arrangements of the filiform papillae consist of well-defined simple or twisted capillary loops. The fungiform papillae have a cylindrical form with a central hole, and the capillary network gives shape to the whole papilla. Finally, the capillary bed of the oval-shaped vallate papilla with its characteristic network and small hairpin-like loops was also examined.
