![Mayo Clinic on Twitter: "#Pneumonia is an infection that inflames the air sacs in one or both lungs. Learn more about this serious lung infection and how to keep you and your Mayo Clinic on Twitter: "#Pneumonia is an infection that inflames the air sacs in one or both lungs. Learn more about this serious lung infection and how to keep you and your](https://pbs.twimg.com/media/DrxHTOzX0AAsi1T.jpg)
Mayo Clinic on Twitter: "#Pneumonia is an infection that inflames the air sacs in one or both lungs. Learn more about this serious lung infection and how to keep you and your
![Epithelial hyperplasia (arrow) on the mucosal surface of the air sac... | Download Scientific Diagram Epithelial hyperplasia (arrow) on the mucosal surface of the air sac... | Download Scientific Diagram](https://www.researchgate.net/profile/Ayse_Kilic11/publication/289917473/figure/fig4/AS:667788293201933@1536224544292/Epithelial-hyperplasia-arrow-on-the-mucosal-surface-of-the-air-sac-from-a-chicken.png)
Epithelial hyperplasia (arrow) on the mucosal surface of the air sac... | Download Scientific Diagram
![Diagram The Pulmonary Alveolus Air Sacs In The Lung. Stock Vector - Illustration of health, bronchi: 130471417 Diagram The Pulmonary Alveolus Air Sacs In The Lung. Stock Vector - Illustration of health, bronchi: 130471417](https://thumbs.dreamstime.com/z/diagram-pulmonary-alveolus-air-sacs-lung-diagram-pulmonary-alveolus-air-sacs-lung-respiratory-system-130471417.jpg)
Diagram The Pulmonary Alveolus Air Sacs In The Lung. Stock Vector - Illustration of health, bronchi: 130471417
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Diagram Showing The Pulmonary Alveolus (air Sacs) In The Lung Royalty Free Cliparts, Vectors, And Stock Illustration. Image 15915102.
![Because air is trapped in these air sacs, it is difficult for lungs with COPD to deflate like normal l… in 2020 | Copd, Chronic obstructive pulmonary disease, Copd symptoms Because air is trapped in these air sacs, it is difficult for lungs with COPD to deflate like normal l… in 2020 | Copd, Chronic obstructive pulmonary disease, Copd symptoms](https://i.pinimg.com/originals/41/08/03/410803ef835d040e6aee89f397683ba6.jpg)