Peyer's patches

Peyer's patches are small clusters of lymphoid tissue found in the lining of the small intestine. They play a crucial role in the immune system by monitoring intestinal bacteria and helping to protect against infections. These patches contain immune cells that can respond to pathogens (germs) and contribute to the body’s overall immune response. By sampling antigens from the gut, Peyer's patches help train the immune system to differentiate between harmful and harmless substances, thus maintaining a balance necessary for gut health and overall well-being.