What Functions Do the Alveoli Serve in the Lungs

question 59

Multiple Choice

What functions do the alveoli serve in the lungs?

• A) They ensure that air flows completely through the lungs.
• B) They prevent dust and pollen from entering the lungs.
• C) They help to expand and contract the lungs.
• D) They allow for the exchange of carbon dioxide and oxygen.

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Definitions:

Basalt

A dark, fine-grained volcanic rock that is formed from the rapid cooling of basaltic lava exposed at or very near the surface of a planet.

Sedimentary Terrain

Areas dominated by sedimentary rocks, which are formed from the accumulation and lithification of mineral and organic particles over time.

Youngest

This term refers to the most recently formed or last in a sequence, often used in contexts related to geologic formations or the age of geological layers.

Plutoid

A class of dwarf planet farther from the Sun than the orbit of Neptune.