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Which one of the following acts as a physiological barrier to the entry of microorganisms in human body?

  1. A
    Epithelium of Urogenital tract
  2. B
    Tears
  3. C
    Monocytes
  4. D
    Skin

Solution & Step-by-step Explanation

Physiological barriers include acid in the stomach, saliva in the mouth, and tears from the eyes—all of which prevent microbial growth. Skin is a physical barrier; Monocytes are cellular barriers.

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Which one of the following acts as a physiological barrier to the entry of microorganisms in human body?
A
Epithelium of Urogenital tract
B
Tears
C
Monocytes
D
Skin

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Human Health and DiseaseImmunity

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