Noun
The word is derived from alveolus
of Alveolus
Source: Webster's dictionaryAt birth the lungs are very undeveloped with only a fraction of the alveoli present. Source: Internet
Blood passes through small capillaries next to the alveoli in the lung, receives oxygen, and travels back to the heart. Source: Internet
Cause Oxygen passively diffuses in the lung alveoli according to a pressure gradient. Source: Internet
Damaged tissue leads to a leakage of fluid and cells, which fill up the alveoli like so many water balloons, decreasing the amount of oxygen they can carry. Source: Internet
As these pass by alveoli carbon dioxide is exchanged for oxygen. Source: Internet
Malpighi, while studying the structure of the lung, noticed its membranous alveoli and the hair-like connections between veins and arteries, which he named capillaries. Source: Internet