胎児気管,主気管支上皮の表面構造について

概要

論文の詳細を見る
We have observed the developmental change of the trachea and the main bronchi at the various gestational age in six fetuses using a scanning electron microscope. The surface of the trachea and the main bronchi at 4 months of gestation showed a predominance of non-ciliated cells covered with microvilli and protruding into the lumen. The ciliated cells, which appeared solitary or grouped, were scattered among the non-ciliated cells covered with microvillous and cilia-like projections of varying lengths. Along with the advance of gestational age, the number of the ciliated cells was observed to increase. The ciliated cells at 7 and 9 months of gestation were found to cover almost of all the luminal surface, and the diameter and length of the cilia were uniform, approximately 6 u to 7u.
日本小児外科学会の論文
1982-04-20