BLOOD CARDIOVASCULAR SYSTEM LYMPHOID ORGANS
LYMPHATIC SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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It has memory.
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It is the first line of defense.
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It does not act upon antigens.
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All of These
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Detailed explanation-1: -While the innate immune response is immediate, the adaptive immune response is not. However, the effect of the adaptive immune response is long-lasting, highly specific, and is sustained long-term by memory T cells.
Detailed explanation-2: -Convention says that the innate immune system retains no memory of previous infections. The adaptive immune system, in contrast, produces antibodies and cells that recognize highly specific parts of pathogens.
Detailed explanation-3: -Specifically, cells of our adaptive immune system, such as T cells and B cells, can mount specificity for the antigen, and these adaptive cells provide memory that lasts up to several decades in the body. Classically, innate immune cells have been thought to lack immunological memory.