摘要
本文以光镜和透射电镜对兔胎肺发育行组织学、形态学测量及超微结构检查,动态地观察了53只胎龄17～30d兔胎仔的肺发育进程.可见兔胎肺发育的四分期:假腺体期(胎龄18～22d);小管期(胎龄23～25d);囊泡期(胎龄26～27d);肺泡期(胎龄28～30d).结果表明:兔胎肺在足月时支气管系统和肺泡结构已很好发育。
Four stages in pulmonary development are recognized in feta'l rabbit including pseudoglandular, canalicular, sacular and alveolar stage using histologic, morpho-molric, and ultra-structural techniques, and described in the present study.Thus, just prior to birth, the fetal rabbit lung has a well-developed structure to carry out extra-uterine gas exchange function
出处
《重庆医科大学学报》
CAS
CSCD
1992年第4期264-267,共4页
Journal of Chongqing Medical University
关键词
胎儿
肺发育
形态学
Fetus. Lung development
Morphology
Rabbit
