Ключевые слова: absorptive cells, absorptive surface, anatomical section, biological specimen, brush border, circular folds, columnar epithelium, compound microscope, connective tissue, cross section, crypts of lieberkuhn, digestive mucosa, digestive system, digestive tract, enterocytes, epithelial lining, epithelial tissue, epithelium, glandular epithelium, goblet cells, gut histology, gut lining, histological view, intestinal absorption, intestinal folds, intestinal glands, intestinal layer, intestinal mucosa, intestinal surface, intestinal villi, intestinal wall, intestine, lamina propria, microscope image, microscopy, microvilli, mucosa, mucosal folds, nutrient absorption, organ section, pink stain, prepared slide, small intestine, stained slide, tissue structure, villi, villous projections, villus core,