Question

How does the immune system work of our body function?

Answer 1

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$<marquee>$ it recognises the cells that make up your body, and will try to get rid of anything unfamiliar. It destroys germs (bacteria and viruses) and parasites. But this defence system can also cause problems.


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Answer 2

antigen-anti body mechanism..

antigen = virus, allergen, bacteria, pyrogen, etc

anti body = wBc in blood, immunoglobulins, prostogladins, autocoids, etc