Question

Peyer's patches function primarily to perform which immune task?

Options

• Filter lymph and activate lymphocytes along lymph vessels

• Filter blood and remove aged erythrocytes

• Mature T-lymphocytes in response to antigens

• Defend against pathogens entering through mucosal surfaces of the gastrointestinal tract

Answer 1

Peyer's patches are secondary lymphoid structures found in the mucosal lining of the gastrointestinal tract as part of GALT (Gut-Associated Lymphoid Tissue). They play a crucial role in providing immune surveillance and defense against pathogenic microorganisms and foreign antigens that may be ingested, making them essential components of the mucosal immune system.