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To which type of barriers under innate i...

To which type of barriers under innate immunity, do the saliva in the mouth and the tears from the eyes, belong?

A

Cytokine barriers

B

Cellular barriers

C

Physiological barriers

D

Physical barriers

Text Solution

Verified by Experts

The correct Answer is:
C
Innate immunity (inborn) is the resistance to infection, which an individual possesses by virtue of his/her genetic and constitutional make up. Thus it comprises all those defence elements with which an individual is born and, which are always available to protect a living body. Physiological barriers like body temperature, pH of the body fluid. and various body secretions (saliva, tears) prevent growth of many disease causing micro-organisms.
Skin is the physical barrier of the body. Its outer tough layer the stratum corneum prevents the entry of bacteria and viruses.
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