在《生理卫生》观察人的口腔上皮细胞实验中,制片和观察都较易成功,但是所看到的细胞往往是分散的,看不到“上皮组织所具有的细胞结合紧密、细胞间质少”的结构特点。为此,我对该实验进行如下改进: 1.制取上皮组织实验前一天将活蛙放在烧杯中,杯口罩上纱布,并用绳子扎紧,无水 In the “physiological hygiene” observation of human oral epithelial cell experiments, the production and observation are more likely to succeed, but the cells seen are often scattered, do not see the "cells with epithelial cells have tightly bound, interstitial cells Less structural features. To this end, I made the following improvements to the experiment: 1. Preparation of epithelial tissue The day before the experiment, the live frog was placed in a beaker, the mask was covered with gauze and tightly tied with a rope, waterless