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| Schimming,Bruno Cesar; Vicentini,Carlos Alberto. |
| The cisternae of the Golgi apparatus of dog epididymal principal cells were labeled by the zinc iodide-osmium tetroxide method (ZIO). These cisternae were observed in the supranuclear region of the cytoplasm of the epididymal principal cells. Abundant endoplasmic reticulum cisternae, multivesicular bodies, mitochondria, lysosomes and vesicular elements of variable size were also found in this region, all associated with the sacks of the well-developed Golgi apparatus. The use of the ZIO method facilitates the observation and identification of the cisternae of the Golgi apparatus, thus permitting a correlation between structure and function in the so-called Golgi area. These ultrastructural characteristics support the secretory role of epididymal principal... |
| Tipo: Journal article |
Palavras-chave: Epididymis; Principal cells; Golgi apparatus; ZIO method. |
| Ano: 2005 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022005000400009 |
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| Schimming,Bruno Cesar; Vicentini,Carlos Alberto. |
| The epithelial principal cells are the predominant cell type of the epididymis. These cells have been shown to be both secretory and endocytic cells. The apical region of the cytoplasm of principal cells in the mongrel dog are located close to the cell apex and tubular lumen, and shown microvilli at the luminal border and present a endocytic apparatus, that consists of coated pits and vesicles, endosomes of varying size, multivesicular bodies, and lysosomes. The endosomes, multivesicular bodies and lysosomes contained the electron-dense patches. These results suggest that principal cells of the epididymis in the dog as possess a highly developed endocytic apparatus play a role in endocytosis. These cells function are similarly to the related in other... |
| Tipo: Journal article |
Palavras-chave: Epididymis; Dog; Principal cells; Ultrastructure. |
| Ano: 2008 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022008000100025 |
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| Schimming,Bruno Cesar; Vicentini,Carlos Alberto; Tirapelli,Luís Fernando; Tirapelli,Daniela Pretti da Cunha. |
| O ducto epididimário, no cão, acha-se revestido por epitélio colunar pseudoestratificado, com população celular constituída por células principais, basais e apicais, presentes em todas as regiões. Este epitélio é circundado pelo estroma peritubular. O epitélio do segmento inicial epididimário possui a maior altura, que diminui progressivamente em direção à cauda epididimária. Ocorre um aumento progressivo do lúmen tubular através das diferentes regiões, sendo maior na região da cauda epididimária, configurando um local de estocagem de espermatozóides. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Epidídimo; Cães; Morfologia; Microscopia. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-95962002000200001 |
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