![Pulmonary air-sac system in a bird.a, Latex injection (blue) of the... | Download Scientific Diagram Pulmonary air-sac system in a bird.a, Latex injection (blue) of the... | Download Scientific Diagram](https://www.researchgate.net/publication/7730012/figure/fig4/AS:267546427392026@1440799447993/Pulmonary-air-sac-system-in-a-birda-Latex-injection-blue-of-the-pulmonary-system-in-a.png)
Pulmonary air-sac system in a bird.a, Latex injection (blue) of the... | Download Scientific Diagram
![The diagram illustrates the healthy trachea and air sacs of the human lungs highlighted with black lines for easy viewing. 8288533 Vector Art at Vecteezy The diagram illustrates the healthy trachea and air sacs of the human lungs highlighted with black lines for easy viewing. 8288533 Vector Art at Vecteezy](https://static.vecteezy.com/system/resources/previews/008/288/533/original/the-diagram-illustrates-the-healthy-trachea-and-air-sacs-of-the-human-lungs-highlighted-with-black-lines-for-easy-viewing-vector.jpg)
The diagram illustrates the healthy trachea and air sacs of the human lungs highlighted with black lines for easy viewing. 8288533 Vector Art at Vecteezy
![The New York Times on X: "Human lungs are made up of millions of microscopic, balloon-shaped air sacs called alveoli, the workhorse of the respiratory system, where the exchange of gases takes The New York Times on X: "Human lungs are made up of millions of microscopic, balloon-shaped air sacs called alveoli, the workhorse of the respiratory system, where the exchange of gases takes](https://pbs.twimg.com/media/EXg95QMXgAElcIA.jpg:large)
The New York Times on X: "Human lungs are made up of millions of microscopic, balloon-shaped air sacs called alveoli, the workhorse of the respiratory system, where the exchange of gases takes
MDD First Aid - Alveoli are tiny balloon shaped structures (air sacs) found at the end of the bronchioles in the lungs and are the smallest passageways in the respiratory system. They
Mayo Clinic - Pneumonia is an infection that inflames the air sacs in one or both lungs. The air sacs may fill with fluid or pus (purulent material), causing cough with phlegm
![Multimedia Gallery - Pulmonary air-sac systems of dinosaurs and birds exhibit striking similarities | NSF - National Science Foundation Multimedia Gallery - Pulmonary air-sac systems of dinosaurs and birds exhibit striking similarities | NSF - National Science Foundation](https://www.nsf.gov/news/mmg/media/images/dino_bird_h1.jpg)