Which items describe the mechanisms of action of ipratropium?

Ipratropium is an anticholinergic medication that primarily works by relaxing the muscles in the airways, leading to bronchodilation, which is the widening of the air passages. By blocking the action of acetylcholine, a neurotransmitter that can cause bronchoconstriction, ipratropium helps to facilitate better airflow and improve breathing, particularly in conditions like asthma and COPD.

The choice regarding airway relaxation accurately reflects the pharmacological effect of ipratropium, as it directly contributes to the reduction of airway resistance and enhances ventilation. This is particularly important in managing symptoms of respiratory conditions where constriction of airway muscles occurs. The mechanism highlights ipratropium's role in a bronchodilator strategy, making it an effective treatment option in various obstructive lung diseases.