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Question
Lymph nodes are secondary lymphoid organs. Explain the role of lymph nodes in our immune response.
Solution
Lymph nodes are small solid structures located at different points along the lymphatic system. Lymph nodes 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.
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