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Choose the correct set of physical barriers of innate immunity.

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An Intiative by Sri Chaitanya

Mucus in urinogenital tract and lysozyme in the tears

Mucus of respiratory tract and natural killer cells

Acid in the stomach and saliva in the mouth

The skin and mucus in GI tract

answer is D.

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Detailed Solution

Physical barriers - Skin; Mucus coating of the epithelium lining the respiratory, gastrointestinal and urogenital tracts.

Physiological barriers - Acid in the stomach, saliva in the mouth, tears from eyes.

Cellular barriers - PMNLs, monocytes and natural killer cells.

Cytokine barriers - Interferons

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