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What is the primary function of the alveoli in the respiratory system?

Practice Questions

Q1
What is the primary function of the alveoli in the respiratory system?
  1. To filter air
  2. To exchange gases
  3. To produce mucus
  4. To regulate blood pH

Questions & Step-by-Step Solutions

What is the primary function of the alveoli in the respiratory system?
  • Step 1: Understand that the respiratory system helps us breathe.
  • Step 2: Know that the lungs are a key part of the respiratory system.
  • Step 3: Learn that alveoli are small air sacs located in the lungs.
  • Step 4: Realize that the main job of the alveoli is to exchange gases.
  • Step 5: Identify that oxygen from the air enters the blood through the alveoli.
  • Step 6: Understand that carbon dioxide, a waste gas, leaves the blood and goes into the alveoli to be exhaled.
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