Summary
The histology and ultrastructure of the oviduct of three ostriches are described. The ostriches were obtained at the stage just before oviposition. The oviduct wall consists of a mucous membrane carrying mucosal folds showing side branching. The pseudostratified columnar or tall simple columnar epithelium covering the lumen contains ciliated and non-ciliated cells. The ultrastructure of the two cell types and the glandular cells of the lamina propria is described. The vagina has no glands in the subepithelial connective tissue. Beyond the connective tissue, the oviduct wall has two layers of smooth musculature. The inner layer consists of circularly disposed fibres some of which continue into the subepithelial connective tissue to ultimately enter the core of the mucosal folds. The outer layer contains oblique and longitudinally arranged fibres and is peripherally bound by a serous covering.
Zusammenfassung
Histologie und Ultrastruktur des Eileiters des Straußes werden anhand von drei Individuen beschrieben, die gerade vor der Eiablage geschossen wurden. Der Eileiter ist von einer Schleimhaut ausgekleidet, die in Falten mit Verzweigungen geworfen ist. Das mehrreihige oder einschichtige Zylinderepithel enthält sowohl mit Zilien versehene als auch zilienlose Zellen. Ihre Ultrastruktur und die der Drüsenzellen der Lamina propria werden dargestellt. Die Propria der Vagina enthält keine Drüsen. Peripher vom Bindegewebe der Lamina propria wird die Eileiterwandung durch zwei Lagen glatter Muskulatur vervollständigt. Die innere Schicht besteht aus circulär angeordneten Fasern, von denen einige in das subepitheliale Bindegewebe der Schleimhautfalten einstrahlen. Die äußere Muskelschicht enthält longitudinal und schräg verlaufende Fasern und ist außen von einer Serosa bedeckt.
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Muwazi, R.T., Baranga, J., Kayanja, F.I.B. et al. The oviduct of the ostrichStruthio camelus massaicus . J Ornithol 123, 425–433 (1982). https://doi.org/10.1007/BF01643275
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DOI: https://doi.org/10.1007/BF01643275