This video compares and contrasts the histology of alimentary canal, including esophagus, stomach, small intestine and large intestine and ends with practice questions. The 4 main layers (mucosa submucosa muscularis externa and adventitia or serosa) and sublayers (epithelium, lamina propria, muscularis mucosae, circular muscle layer and longitudinal muscle layer) are identified on each organ. Special features (i.e. villi, microvilli, goblet cells, intestinal crypts/glands, brunners glands, gastric pits and gastric glands) are identified.
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