Tissue sections were stained with Harris\'s hematoxylin and eosin Y. The histological structure of 17 organ tissues obtained from eight systems was included in this study. Tissue sections were obtained from the urinary system (kidney), muscular system (striated skeletal muscle and smooth muscle), cardiovascular system (cardiac muscle (ventricle), coronary artery, and coronary vein), respiratory system (trachea and lung), gastrointestinal system (esophagus, stomach, small intestine, liver, and pancreas), reproductive system (testis), lymphatic system (spleen and thymus), and endocrine system (pancreas).
While most structures were similar to those of other mammal species, there were some differences in the tissue sections of dugongs when compared with other mammalian species and manatees. These include the kidneys of dugongs, which were non-lobular and had a smooth, elongated exterior resulting in a long medullary crest, whereas the dugong pyloric epithelium did not have overlying stratified squamous cells and was noticably different from the Florida manatee.
Histological information obtained from various organs of the dugong can serve as an essential foundation of basal data for future microanatomical studies. This information can also be used as high-value data in the diagnosis and pathogenesis of sick dugongs or those with an unknown cause of death.
■组织切片用Harris的苏木精和伊红Y染色。本研究包括从八个系统获得的17个器官组织的组织学结构。从泌尿系统(肾脏)获得组织切片,肌肉系统(横纹肌和平滑肌),心血管系统(心肌(心室),冠状动脉,和冠状静脉),呼吸系统(气管和肺),胃肠道系统(食道,胃,小肠,肝脏,和胰腺),生殖系统(睾丸),淋巴系统(脾和胸腺),和内分泌系统(胰腺)。
■虽然大多数结构与其他哺乳动物相似,与其他哺乳动物和海牛相比,儒艮的组织切片有一些差异。这些包括儒艮的肾脏,它们是非小叶的,有光滑的,细长的外部导致长的髓峰,而儒艮幽门上皮没有上覆的复层鳞状细胞,并且与佛罗里达海牛明显不同。
■从儒艮各种器官获得的组织学信息可以作为未来显微解剖学研究的基础数据的重要基础。这些信息也可以用作诊断和发病机制的高价值数据。