Duodenum Slide

Using scanning power, identify the four layers of the intestinal wall. The epithelial lining has been detached so all you see on each villus is the lamina propria bounded by a naked basement membrane. Crypts of Lieberkuhn are intestinal glands, which contain Paneth cells, which in turn, contain eosinophilic granules. The submucosa is marked by pockets of Brunner's glands (mucous-producing glands).