Battle to Breathe

Image: What do alveoli do with the oxygen you breathe?

Long Description: Inhaled air fills alveoli in the lungs

Image: How does lung damage begin?

Long Description: Injury or infection can rip, stretch, or irritate the delicate membrane around alveoli

Image: What happens when alveoli fill with watery fluid?

Long Description: Flooded alveoli buckle under pressure

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