Question

the text explains that lymph nodes are sites where pathogens collect and 1 point adaptive immune responses begin. based on this, what is the most logical reason for lymph nodes to become swollen and tender during an infection like strep throat? the swelling reflects a massive and rapid multiplication of lymphocytes (like b and t cells) inside the node to mount a specific attack against the trapped pathogens. the swelling is caused by the lymph node filling up with dead pathogens that have been destroyed by the innate immune system elsewhere in the body. the swelling is caused by a blockage of lymph fluid from the brain, triggered by the infection. the swelling is a direct result of the bacteria themselves multiplying and accumulating inside the nodes.

Explanation:

Lymph nodes are sites for adaptive immune responses. During an infection, lymphocytes (B and T - cells) multiply rapidly in lymph nodes to fight pathogens, causing swelling. Dead pathogens from elsewhere are not the main cause of swelling in lymph nodes. Lymph fluid blockage from the brain is not related to lymph - node swelling during common infections like strep throat. Bacteria multiplying inside nodes is not the primary reason for swelling; it's the immune - cell response.

Answer:

The swelling reflects a massive and rapid multiplication of lymphocytes (like B and T cells) inside the node to mount a specific attack against the trapped pathogens.