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Question
To which type of barriers under innate immunity do saliva from mouth and tears from eye belongs to?
To which type of barriers under innate immunity do saliva from mouth and tears from eye belongs to?
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Solution
The correct option is A Physiological barriers
Innate immunity is non-specific type of defence, that is present at the time of birth. This is done by providing different types of barriers to the entry of the pathogens into our body. Innate immunity consist of four types of barriers.
Physiological barriers: Acid in the stomach, saliva in the mouth, tears from eyes–all prevent microbial growth.
Physical barriers: Skin on our body is the main barrier which prevents entry of the micro-organisms.
Cytokine barriers: Virus-infected cells secrete proteins called interferons which protect non-infected cells from further viral infection.
Leukocytes (WBCs) and natural killer cells (NK) in the blood are two types of cells that acts as 'cellular barriers' to provide innate immunity in humans.
Innate immunity is non-specific type of defence, that is present at the time of birth. This is done by providing different types of barriers to the entry of the pathogens into our body. Innate immunity consist of four types of barriers.
Physiological barriers: Acid in the stomach, saliva in the mouth, tears from eyes–all prevent microbial growth.
Physical barriers: Skin on our body is the main barrier which prevents entry of the micro-organisms.
Cytokine barriers: Virus-infected cells secrete proteins called interferons which protect non-infected cells from further viral infection.
Leukocytes (WBCs) and natural killer cells (NK) in the blood are two types of cells that acts as 'cellular barriers' to provide innate immunity in humans.
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