Question

frequently prescribed drugs - 2025 update

1. bronchodilators make breathing easier for individuals with asthma and copd by __________.

a making the alveoli in the lungs more receptive to oxygen
b making the bronchioles and lungs stronger
c making the lung muscles stronger
d relaxing the smooth muscles of the airways of the lungs

Explanation:

Bronchodilators work by relaxing the smooth - muscle tissue in the walls of the airways (bronchi and bronchioles) in the lungs. This relaxation causes the airways to widen, allowing more air to flow in and out, which makes breathing easier for those with asthma and COPD. They do not directly make alveoli more receptive to oxygen, nor do they make bronchioles, lungs or lung muscles stronger.

Answer:

D. relaxing the smooth muscles of the airways of the lungs