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Innate Immunity Barriers

Assertion :Hi...

Question

Assertion :Histamine is involved in allergic and inflammatory reactions. Reason: Histamine is a vasodilator.

A

Both the assertion and the reason are true and the reason is the correct explanation of the assertion.

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B

Both the assertion and the reason are true and the reason is not the correct explanation of the assertion.

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C

The assertion is true but the reason is false

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D

Both the assertion and reason are false

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Solution

The correct option is A Both the assertion and the reason are true and the reason is the correct explanation of the assertion.
Histamine is a derivative of the amino acid histidine. Produced by damaged cells of vertebrates. When released, it has the effect of dilating capillaries and lowering blood pressure. Histamine is involved in allergic and inflammatory reactions.

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