An 18 year old student is performing strenuous exercise.
What is the most likely effect on hir airway resistance at peak performance and why?

Question

An 18 year old student is performing strenuous exercise. 
 What is the most likely effect on hir airway resistance at peak performance and why?

Answer

Increased due to turbulence of airflow

Answer

Increased due to bronchoconstriction

Answer

Decreased due to laminar airflow

Answer

Decreased due to constricted bronchial blood vessels

Answer

Decreased due to bronchodilation

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