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前言 在肺组织中,肺血管内皮细胞数量约占肺细胞总数的20—30％。肺血管内皮细胞不仅是一种屏障,它还有极活跃的代谢功能,这对维持机体的生理状态起了重要作用。在肺损伤时,其代谢功能的改变可能有某些发病学意义。 一、肺血管内皮细胞的结构特点和代谢功能 Ryan等人通过电镜观察,发现肺血管内皮细胞表面有三种特殊的结构:它的表面有许多呈微绒毛样的指样突起,还有许多潜隐的或暴露的腔隙及细胞外被层的多糖。
Preface In lung tissue, the number of pulmonary vascular endothelial cells accounts for about 20-30% of the total number of lung cells. Pulmonary vascular endothelial cell is not only a barrier, it also has extremely active metabolic function, which plays an important role in maintaining the physiological state of the body. In lung injury, changes in metabolic function may have some of the significance of the disease. First, the structural characteristics of pulmonary vascular endothelial cells and metabolic function Ryan et al observed by electron microscopy and found that there are three special pulmonary vascular endothelial cell surface structure: its surface has many micro-villiform finger-like protrusions, there are many hidden Or exposed cavities and extracellular polysaccharides.