Which of the following statements regarding different barriers of innate immunity is not correct ?

Options

A. Acid present in the stomach saliva in the mouth, tears from the eyes prevent the growth of microorganisms and constitude physiological barriers of out body.
B. Mucous membrane lining the respiratory, gastriontestinal and urinogenital tracts helps in ttrapping the microbes and costitute physiological barriers of our body.
C. Certain types of leucocytes such as polymorphonuclear leucocytes (PMNL- neutrophils ) and lymphocytes such as natural killer cells, constitute cellular barriers of our body.
D. Virus- infected cells secrete proteins called interferons which protect non- infected cells from further viral infection and constitute cytokine barriers of our body.

Answer

B

Explanation

Mucous membrane lining the respiratory, gastrointestinal and uriogenital tracts helps in trapping the microbes and constitude physical barriers of our body.