Cross-section of a colon with view on its lumen as well as the architecture of its wall/layers of the intestinal wall. In general, the following order applies from the inside to the outside: Tunica mucosa with Lamina muscularis mucosae, Tunica submucosa, Tunica muscularis propria, Tunica adventitia (serosa with peritoneum). Additionally, a chronic inflammatory disease is clearly visible here: Colitis ulcerosa.
