celiac disease. small intestinal with normal villi, and villous

anatomical anatomy atrophy autoimmune blunting body bowel care celiac cell coeliac damage diagram diarrhea digestion digestive disease disorder duodenum epithelium free gluten gut health healthcare healthy human ileum ill illness illustration inflammation intestinal intestine intolerance lining medical medicine microvilli normal organ protein science showing small sprue stomach structure surface system tract unhealthy villi villous villus wall