Lymph nodes
A) produce enzymes in the lymph.
B) are where macrophages congregate and filter pathogens from the lymph.
C) produce antibodies and antigens.
D) are part of the respiratory system.

Question

Quizplus · Accepted Answer

Lymph nodes are small, bean-shaped structures that are part of the lymphatic system. They contain immune cells, including macrophages, which can filter and remove pathogens from the lymphatic fluid that flows through them. They do not produce enzymes, antibodies, or antigens, and they are not part of the respiratory system.

Lymph Nodes