气道防御屏障

被引:18
作者
吴晓东
施毅
机构
[1] 南京大学医学院临床学院南京军区南京总医院呼吸科
关键词
D O I
暂无
中图分类号
R33 [人体生理学];
学科分类号
100123 [人体微生态学];
摘要
<正>人类气道从功能上可以分为四个解剖节段:上呼吸道(鼻咽部,Ⅰ段)、导气段(从咽到终末支气管,Ⅱ段)、呼吸性支气管(Ⅲ段)、肺泡管和肺泡(Ⅳ段)。随着管径变细,气道上皮逐渐由假复层上皮变为单层上皮,上皮细胞的高度也逐渐变低,杯状细胞数量逐渐变少直至消失。其结构不同,决
引用
收藏
页码:301 / 304
页数:4
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