Asthma Pathology Explained: Normal vs. Asthmatic Airways #3075981 (License: Personal Use)

The image illustrates three progressive stages of airway pathology in asthma: a normal airway with relaxed smooth muscles and open lumen; a chronically asthmatic airway with inflamed, thickened walls and narrowed passage; and an acute attack phase where smooth muscles constrict severely, trapping air in the alveoli. Each stage is shown both in full-body context and in detailed cross-section for clarity.

Used on medical education, pulmonology, or patient-empowerment web pages to explain asthma mechanisms; matches user intent to understand disease progression, symptoms, or treatment rationale.