黏膜上皮全部为假复层柱状上皮，黏膜的固有膜内腔上囊小结也相对发达。
Epithelial tissue is the pseudostratified ciliated columnar epithelium, more Fabricius nodes are located in the natural layer.
结果：8周的胚胎，气管壁由2 3层复层柱状上皮细胞及外周的间充质构成，上皮细胞的PAS反应为阳性。
Result: at 8-week embryo, trachea consists of 2-3 layers of stratified columnar cells and mesenchyme around the cells, the reaction of PAS of epithelium was positive.
对照组嗅上皮投射电镜下为典型的假复层柱状上皮，可见微绒毛细胞、支持细胞、嗅细胞、基底细胞，构成良好的三层结构。
In control group, typical pseudostratified columnar epithelium, composed of three layers, could be seen under shoot electron-microscopy in olfactory mucosa.
应用推荐