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Ulcerative colitis model showing a wedge of colon wall cut away to reveal the damage inside. Along the top, the inflamed mucosa erupts in lumpy pseudopolyps with deep ulcer craters between them, while the cut face shows wavy layers of submucosa and muscle running beneath. The rough, swollen texture makes the disease easy to see and discuss. It is a strong teaching piece for anatomy and pathology classes, nursing and gastroenterology education, or a patient talk about inflammatory bowel disease.

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