Slide DMS136 (Monkey; colon; PTS). You are looking at a plastic thin section stained by an H&E method. The finer details of the epithelial cells can be seen clearly in this section. Note the abundant mitotic figures in the bases of the crypts. What varieties of cells are abundant in the lamina propria?
There are several distinctive features of the colon. First of all note the complete lack of villi (typical of large bowel). Don't mistake intestinal glands for villi. The epithelium again consists of absorptive and goblet cells. The goblet cells are even more abundant than in the small intestine. Looking at the material in the lumen one can gain a good notion of the functional importance of goblet cell mucus secretion. Lymphoid nodules are present in the submucosa. Can you see any teniae coli?