Which of the following is a physiological bar | vedclass

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(C) Innate immunity consists of four types of barriers: Physical,Physiological,Cellular,and Cytokine barriers.$1$. Physical barriers include skin and

Vedclass · Accepted Answer

Saliva in the mouth

Vedclass · Answer

(C) Innate immunity consists of four types of barriers: Physical,Physiological,Cellular,and Cytokine barriers.$1$. Physical barriers include skin and mucus coatings of the respiratory,gastrointestinal,and urogenital tracts.$2$. Physiological barriers include acid in the stomach,saliva in the mouth,and tears from eyes,which prevent microbial growth.$3$. Cellular barriers include leukocytes like polymorphonuclear leukocytes ($PMNL$-neutrophils),monocytes,and natural killer cells.$4$. Cytokine barriers include interferons which protect non-infected cells from further viral infection.Therefore,saliva in the mouth is a physiological barrier.

Which of the following is a physiological barrier in innate immunity?

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