What is the function of lymphodes?

Lymph nodes are small, bean-shaped structures that play a crucial role in the immune system. They filter lymph fluid, trapping bacteria, viruses, and other foreign substances, which are then destroyed by specialized immune cells within the nodes. Lymph nodes also produce and store lymphocytes, a type of white blood cell that helps the body fight infections. Additionally, they serve as communication hubs for the immune system, coordinating responses to pathogens.