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.
直肠单层柱状上皮与假复层纤毛柱状上皮共存。
The rectum mucosa epithelium is composed of single-layer columnar epithelium and pseudostratified ciliated columnar epithelium.
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.
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