MISCELLENOUS
VACCINATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Why innate immunity is said as first line body defense?
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Present before any exposure to pathogens
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Effective from the time of birth
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Largely non specific, responding to a broad range of microbes
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Develops only after exposure to abnormal body cells
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Highly specific
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Explanation:
Detailed explanation-1: -Innate immune responses are not specific to a particular pathogen in the way that the adaptive immune responses are. They depend on a group of proteins and phagocytic cells that recognize conserved features of pathogens and become quickly activated to help destroy invaders.
Detailed explanation-2: -Physical barrier The innate immune system provides the first line of defense, which is divided broadly into two categories – physical/chemical barriers and nonspecific resistance.
Detailed explanation-3: -The macrophages and neutrophils of the innate immune system provide a first line of defense against many common microorganisms and are essential for the control of common bacterial infections.
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