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What is one of the effects of histamine in the nasal passages?

Options

  1. AIt causes bronchoconstriction.
  2. BIt triggers an allergic response to pollen.
  3. CIt contracts smooth muscles in the bronchi.
  4. DIt leads to nasal congestion.

Correct answer

D. It leads to nasal congestion.

Step-by-step solution

Histamine is responsible for the nasal congestion associated with the common cold and allergic response to pollen.

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