Innate immunity consists of different types of barriers that prevent the entry of foreign agents into our body. Which of the following is an incorrectly matched pair of an innate immunity barrier and its example?

Step-by-step solution

Saliva in the mouth, tears from the eyes, and acid in the stomach are examples of physiological barriers that prevent microbial growth. Therefore, matching saliva in the mouth with 'Physical barrier' is incorrect. Physical barriers include the skin on our body and the mucus coating of the epithelium lining the respiratory, gastrointestinal, and urogenital tracts. Polymorpho-nuclear leukocytes (PMNL-neutrophils) act as cellular barriers by phagocytosing and destroying microbes. Interferons act as cytokine barriers,