alveoli
Alveoli are small sacks that are located in the lungs. They are responsible for taking in and exchanging air with the environment.
The alveoli are particularly important when we are breathing in cold air.
Alveoli are small sacks that are located in the lungs. They are responsible for taking in and exchanging air with the environment.
The alveoli are particularly important when we are breathing in cold air.
noun
A small cavity or pit.
noun
An anatomical structure that has the form of a hollow cavity, as: