Adaptive immune system
- The adaptive immune system evolved in early vertebrates
- allows for a stronger immune response as well as immunological memory
- each pathogen is "remembered" by a signature antigen.
antigen-specific
- allows for the generation of responses that are tailored (量身訂製) to specific pathogens or pathogen-infected cells
antigen presentation
- recognition of specific "non-self" antigens
memory cells
- The ability to mount these tailored responses is maintained in the body by "memory cells".
- Should a pathogen infect the body more than once, these specific memory cells are used to quickly eliminate it.
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