What physical change occurs in the airways during an asthma attack?

During an asthma attack, bronchial constriction occurs as a significant physical change in the airways. This is a hallmark feature of asthma, where the muscles surrounding the bronchial tubes tighten and narrow the airways. As a result, the airflow is restricted, making it difficult for individuals to breathe.

This constriction is often accompanied by inflammation and increased production of mucus, which can further obstruct the airways. Understanding this mechanism is essential for recognizing asthma symptoms and managing attacks effectively, often through the use of bronchodilators that help relax the muscles and open up the air passages.

The other options mention increased airflow, decreased mucus production, and widening of the air passages, which are not characteristic of an asthma attack. Instead, these suggest a normal or non-asthmatic state, where the airways remain open and unobstructed.