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

Tears

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Skin

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Lymphocyte

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Monocyte

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Solution

The correct option is A Tears
Innate immunity is non-specific type of defence, that is present at the time of birth. This is accomplished by providing different types of barriers to the entry of the foreign agents into our body.
Tears acts a physiological barrier.
Skin is a type of physical barrier.
Both lymphocytes and monocytes are examples of cellular barriers.

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Similar questions

Which one of the following is a physiological barrier to the entry of microorganisms?

Assertion: pH of certain secretions in the body prevent the growth of many microorganisms.

Reason: It acts as a type of physical barrier which prevents the entry of microorganisms.

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