What is the function of the lymph nodes in the human body?

Step-by-step solution

Lymph nodes serve to trap the microorganisms or other antigens, which happen to get into the lymph and tissue fluid. Antigens trapped in the lymph nodes are responsible for the activation of lymphocytes present there and cause the immune response.The thymus is quite large at the time of birth but keeps reducing in size with age. By the time puberty is attained, it reduces to a very small size. The spleen mainly contains lymphocytes and phagocytes. It acts as a filter of the blood by trapping blood-borne microorgani