NEET Previous Year Question
Which of the following acts as physiological barrier?
Topic: NEET PYQ
Answer: C. Full step-by-step solution below.
- ANatural killer cells
- BInterferons
- CTears from eyes
- DMucus coating of the epithelial lining of urogenital tracts
Correct answer: C
Solution
(c) Physiological barriers are the first line of innate immunity and include tears, saliva, and mucus that prevent entry of pathogens.More Chemical Coordination & Integration PYQs
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