【摘要】 为了研究鸵鸟与其他鸟纲动物排泄行为差异的形态学,试验采用常规石蜡切片,H.E.染色,对8只非洲鸵鸟输尿管和泄殖道的组织结构进行了研究。结果表明:非洲鸵鸟的输尿管管壁由黏膜、肌层和外膜组成,其上皮为假复层柱状上皮,部分为单层柱状或变移上皮;泄殖道黏膜上皮为假复层柱状上皮、单层柱状上皮及少量变移上皮,其中分布许多杯状细胞。说明非洲鸵鸟输尿管和泄殖道的组织结构不同于其他鸟纲动物,其泄殖道不但有贮存大量尿液的功能,而且还对水分有重吸收作用。更多还原

【Abstract】 To investigate the morphology for the differences of excretion behavior between the ostrich and other birds species,the tissue structures of the ureters and urodea from eight African ostriches were studied using conventional paraffin sections with H.E.staining.The results showed that the ureter wall of African ostriches consisted of mucosa,muscularis and adventitia,with most of pseudostratified columnar epithelium and part of simple columnar or transitional epithelium.The urodeum had plenty of pseudostratified columnar epithelium,simple columnar epithelium and a few transitional epithelium,in which many goblet cells were distributed.These results indicate that the histological structure of the ureter and urodeum in African ostrich are different from other birds species,the urodeum not only can store a lot of urine,but also can reabsorb water.更多还原