Q: What occurs when the bronchioles swell and the muscles around the bronchioles contract? Read this paragraph and choose the correct option from the provided answers: Courtesy of the U. S. Food and Drug Administration (FDA). Asthma occurs when the bronchioles swell and the muscles around the bronchioles contract . Public Domain. Choices: - bronchitis - nausea - allergies - asthma A:
Answer:
asthma