PATHOLOGY MCQ
LYMPHO RETICULAR SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which response occurs on first exposure to particular antigen?
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primary
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secondary
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Either A or B
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None of the above
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Explanation:
Detailed explanation-1: -The primary immune response to antigen occurs on the first occasion it is encountered. This response can take up to 14 days to resolve and leads to the generation of memory cells with a high specificity for the inducing antigen.
Detailed explanation-2: -The primary immune response : the immune response occurring on the first exposure to an antigen. After a lag or latent period of from 3 to 14 days depending on the antigen, specific antibodies appear in the blood. There is a peak of IgM production lasting several days followed immediately by a peak of IgG production.
There is 1 question to complete.