IMMUNOLOGY

Detailed explanation-1: -Adaptive immunity creates immunological memory after an initial response to a specific pathogen, and leads to an enhanced response to future encounters with that pathogen. Antibodies are a critical part of the adaptive immune system.

Detailed explanation-2: -Adaptive immunity, on the other hand, is antigen-dependent and antigen-specific; it has the capacity for memory, which enables the host to mount a more rapid and efficient immune response upon subsequent exposure to the antigen.

Detailed explanation-3: -2.4. Immunologic memory is another important characteristic of adaptive immunity. It means that the immune system can remember the antigens that previously activated it and launch a more intense immune reaction when encountering the same antigen a second time (Figure 2.10).

Detailed explanation-4: -Memory is a characteristic recognized within both the innate and adaptive arms of the immune system. Although the mechanisms and properties through which innate and adaptive immune memory are induced are distinct, they collude to improve host defense to pathogens.

Detailed explanation-5: -Immunological memory is the property of remembering specific adaptive immune responses, and making a greater and more rapid response in the future to the same pathogen (see Fig. 1.20).