Bronchodilation is caused by sympathetic activation and the release of which neurotransmitter?
A) acetylcholine
B) epinephrine
C) serotonin
D) dopamine
E) nitrous oxide

Question

Quizplus · Accepted Answer

Bronchodilation is caused by sympathetic activation which leads to the release of epinephrine from the adrenal medulla. Epinephrine binds to beta-2 adrenergic receptors on the smooth muscles of bronchioles, causing relaxation and dilation of the airways.

Bronchodilation Is Caused by Sympathetic Activation and the Release of Which