成体大凉疣螈肺脏的组织形态学观察

采用HE染色和Masson染色方法,研究了成体大凉疣螈肺脏的基本组织形态和纤维分布情况.结果表明,成体大凉疣螈肺脏大体解剖为一对有弹性的中空薄壁囊状结构,内表面呈蜂窝状;组织切片观察显示囊状肺分为气管、隔膜和肺泡的多级结构,与高等动物肺脏的基本结构相似,但肺泡数量少,表明其呼吸功能较弱.对纤维分布的观察结果表明,成体大凉疣螈肺脏的气管和肺泡壁拥有较为丰富的胶原纤维.该文首次对大凉疣螈做了肺脏的组织形态学观察,为更深入了解疣螈及其保护提供了基础资料.

Histomorphological Observation of Lung of Adult Tylototriton taliangensis

Both HE staining and Masson staining were made to study the morphology and fiber distribution of the lung in mature Tylototriton taliangensis.The results showed that the lung of T.taliangensis was a pair of flexible thin-walled cystic structure and contained a honeycomb-like inner surface.Tissue slicing indicated that the lung was a multi-level structure including the trachea,diaphragm and alveolus,similar to that of higher animals.However,the amount of alveolus pulmonis was less than that of higher animals,indicating a relatively weak respiratory function.In the observation of its fiber distribution,numerous collagen fibers were found in the trachea and alveolus wall of the lung.This study may provide a basis for further study on T.taliangensis and its protection.