Bronchodilation may occur in response to:
A)the parasympathetic nervous system.
B)inflammation.
C)increased mucus.
D)the sympathetic nervous system.

Question

Quizplus · Accepted Answer

Bronchodilation occurs in response to the sympathetic nervous system, which releases epinephrine and norepinephrine to relax the smooth muscles in the bronchioles, allowing for increased airflow. The parasympathetic nervous system, on the other hand, causes bronchoconstriction. Inflammation and increased mucus production can also cause bronchoconstriction, not bronchodilation.

Bronchodilation May Occur in Response To