Question

question 15
which part of the lower respiratory tract constricts during asthma attacks?
alveoli
bronchi
trachea
bronchioles

Explanation:

During an asthma attack, the bronchioles (small airways in the lungs) constrict. This constriction is due to inflammation and muscle spasms in the bronchioles, which narrows the airways and makes it difficult to breathe. Alveoli are the tiny air - sacs where gas exchange occurs and are not the site of constriction. The trachea is a larger airway and not typically the site of constriction in asthma. The bronchi are larger than bronchioles and while they can be affected to some extent, the primary site of constriction in asthma is the bronchioles.

Answer:

Bronchioles