猫、兔、小鼠十二指肠的比较组织学研究

Comparison histologic study on duodenum of cats,rabbits and mice

目的对不同动物的十二指肠进行比较组织学研究,为小肠的生理和病理学研究提供资料。方法取猫、兔、小白鼠十二指肠中段,常规组织学制片HE染色和阿利新兰-PAS反应,镜下观察并进行形态计量学研究。结果三种动物绒毛的形状、球粒白血球,十二指肠腺的性质、肌层厚度均存在明显差别,但绒毛上皮内杯状细胞的数量相似。结论不同动物十二指肠的组织学结构存在诸多不同,这些差异与动物的食料及生活习性有关。

Objective： To check the difference of histologic and histochemistric among cats, rabbits and mice, and to provide data for the physiologic and pathologic study of small intestine.. Methods ： The meddle segment duodenum of healthy cats, rabbits and mice were used in the study. The sections of duodenum were stained with HE and A - PAS reaction, observed and studied by the method of morphometry under the light microscope. Results ： There were remarkable differences in villi shape, property of the duodenal glands and the inner circular and out longitudinal layer of the muscularis extema thickness, but there is no remarkable difference in number of the goblet calls in villi epithelium. Conclusion ： The results showed that there are differences of duodenum microstructure of different animals, and these differences have certain relationship with the animal＇s food.