What are Lymph Nodes?
Reviewed: Dr. Gromatzky
8. Produces Antibodies
The lymph nodes, and the lymphatic system, are part of the immune system. In addition to killing harmful microorganisms coming in with the lymphatic system, it helps produce antibodies. This role is carried out by B lymphocytes.
These antibodies work against specific foreign invaders or antigens, thereby protecting the body from attack. Once an antibody has been produced, the B lymphocyte cells retain their memory so that more of the antibody can be produced when required. Antibodies are a kind of marker that attaches to invaders to indicate to the immune system that they need to be destroyed.
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