Epithelial tissue is the pseudostratified ciliatedcolumnarepithelium, more Fabricius nodes are located in the natural layer.
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。
2
The rectum mucosa epithelium is composed of single-layer columnarepithelium and pseudostratified ciliatedcolumnarepithelium.
直肠单层柱状上皮与假复层纤毛柱状上皮共存。
3
The gland epithelium was irregular pseudo-stratified ciliatedcolumnarepithelium which consist a lot of secretory cells, fewer ciliatedcolumnar cells, and basilar cells.