![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
![Human Alveoli Stock Illustration - Download Image Now - Alveolus, Anatomy, Biomedical Illustration - iStock Human Alveoli Stock Illustration - Download Image Now - Alveolus, Anatomy, Biomedical Illustration - iStock](https://media.istockphoto.com/id/479388023/vector/human-alveoli.jpg?s=612x612&w=0&k=20&c=I4WItXv9agSDOYypjzGc8w51nNvag8EV-qRRer1JOBU=)
Human Alveoli Stock Illustration - Download Image Now - Alveolus, Anatomy, Biomedical Illustration - iStock
![The New York Times on Twitter: "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 Twitter: "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 Twitter: "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
![Gross morphological features of the air sacs of the hooded crow (Corvus cornix) - El‐Sayed - 2020 - Anatomia, Histologia, Embryologia - Wiley Online Library Gross morphological features of the air sacs of the hooded crow (Corvus cornix) - El‐Sayed - 2020 - Anatomia, Histologia, Embryologia - Wiley Online Library](https://onlinelibrary.wiley.com/cms/asset/3a9713c1-cbed-4de6-83ed-99548313c5ee/ahe12504-fig-0003-m.jpg)
Gross morphological features of the air sacs of the hooded crow (Corvus cornix) - El‐Sayed - 2020 - Anatomia, Histologia, Embryologia - Wiley Online Library
![Illustration depicting emphysema, a condition characterized by damage to the alveoli. Alveoli are the small air sacs at the end of the respiratory tree (in the lungs). Long term exposure to compounds Illustration depicting emphysema, a condition characterized by damage to the alveoli. Alveoli are the small air sacs at the end of the respiratory tree (in the lungs). Long term exposure to compounds](https://c8.alamy.com/comp/G156H6/illustration-depicting-emphysema-a-condition-characterized-by-damage-G156H6.jpg)