Understanding COPD: Causes, Symptoms, and Lung Damage Visualized #3330073 (License: Personal Use)

The image depicts two human lungs with magnified cross-sections: the left shows emphysematous alveoli with destroyed walls and reduced gas exchange surface, while the right illustrates chronic bronchitis with inflamed airways and excessive yellow mucus secretion. Both pathologies contribute to airflow obstruction and progressive respiratory decline in COPD patients.

Used on health education pages, pulmonology resources, or patient-facing materials explaining COPD pathophysiology; matches user intent for visual learning about lung disease mechanisms.