|| Air sac
|| Adj.: alveolar.|
Derived from the Latin term, "alveus" (tray or basin)
| Free definitions
1. A small cavity or pit.
2. (anatomy) an anatomical structure that has the form of a hollow cavity
3. (anatomy) a small air sac in the lungs, where oxygen and carbon dioxide are exchanged with the blood.
An alveolus (plural: alveoli, from Latin alveolus, "little cavity") is an anatomical structure that has the form of a hollow cavity.
| MeSH ID
Alveoli are the air sacs of the lungs where gas exchange occurs via specialized capillaries.
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