Bronchodilation of the air passages involves the ____ of their smooth muscle contraction and the ____ of their radius.
A) decrease, decrease.
B) decrease, increase.
C) increase, decrease.
D) increase, increase.

Question

Quizplus · Accepted Answer

Bronchodilation involves a decrease in smooth muscle contraction and an increase in the radius of the air passages. This allows for greater ease of airflow and is the opposite of bronchoconstriction, which involves an increase in smooth muscle contraction and a decrease in the radius of the air passages.

Bronchodilation of the Air Passages Involves the ____ of Their