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  • Duchess Mariss Cloma posted an update in the group Group logo of Histology Art (MT 30 – I) 2022Histology Art (MT 30 – I) 2022 4 years, 3 months ago

    Histology Art: Digestive System Body Tissues II

    • Gallbladder wall showing columnar epithelium with mucosal folds, connective tissue and smooth muscle fibers.

      The recto-anal junction features an important change in epithelial structure. The rectum is characterized by the same columnar epithelium that lines the majority of the gastrointestinal tract’s secretory and absorptive areas. The anus, on the other hand, has a stratified squamous epithelium that provides a greater deal of protection to the underlying tissue.

      The wall of the large intestine is lined with simple columnar epithelium. Instead of having the evaginations of the small intestine ( villi ), the large intestine has invaginations (the intestinal glands).

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