MICROANATOMY

Detailed explanation-1: -Where are they located? Peyer’s patches are located in your small intestine, usually in the ileum area. The ileum is the last portion of your small intestine. In addition to further digesting the food you eat, the ileum also absorbs water and nutrients from food.

Detailed explanation-2: -However, Peyer’s patches keep the intestinal flora at appropriate levels and the pathogens at bay, thereby preventing a large number of infections. As a part of the pathogenesis of food allergy, the Peyer’s patches and vasculature of lamina propria allow the circulation of inflammatory cells to the immune structures.

Detailed explanation-3: -The gut-associated lymphoid tissue (GALT) consists of isolated or aggregated lymphoid follicles forming Peyer’s patches (PPs). By their ability to transport luminal antigens and bacteria, PPs can be considered as the immune sensors of the intestine.