How Do Antibodies Help Defend The Body

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How Do Antibodies Help Defend The Body

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Antibodies are specialized proteins that defend against foreign substances in the body. 'antibodies' is another name for B cells, more specifically B memory cells which are what make us immune to certain infections such as polio. Antibodies are basically the key to 'unlocking' the pathogen so it can be destroyed. If an organism invades and the body already has antibodies against it, it is immediately reactive to the pathogen and starts an immediate strong immune response erradicating the pathogen. The antibodies are already there in the blood so the T cells, macrophages etc are initiated into removing of the pathogen. If we have never been exposed to the pathogen before, we do not have antibodies to it, so our immune response takes longer to identify the pathogen, spread to the lymph nodes, present the antigen to the T and B cells and get an antibody produced which will then allow the T cells and macrophages to remove the organism.
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