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Question
Statement 1: Components of innate immunity include physical barriers like skin and mucous membrane of mouth, GI tract and urinary tract etc.
Statement 2: The physical barriers differentiate between internal and external environments and obstruct pathogens from crossing the barrier.
Statement 1: Components of innate immunity include physical barriers like skin and mucous membrane of mouth, GI tract and urinary tract etc.
Statement 2: The physical barriers differentiate between internal and external environments and obstruct pathogens from crossing the barrier.
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Solution
The correct option is A Both the statements are correct
The innate or natural immune response has physical and chemical barriers that act as the first line of defence against infectious pathogens. The skin is the largest physical barrier for any of the substances from the outside environment to enter the inner environment of the body’s tissues. The epithelial surface of Gastro-intestinal tract, urinary tract etc. has mucous membranes which serve as the primary barrier to microbial or pathogenic entry into the body tissues.
The innate or natural immune response has physical and chemical barriers that act as the first line of defence against infectious pathogens. The skin is the largest physical barrier for any of the substances from the outside environment to enter the inner environment of the body’s tissues. The epithelial surface of Gastro-intestinal tract, urinary tract etc. has mucous membranes which serve as the primary barrier to microbial or pathogenic entry into the body tissues.
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