Question

Your lungs take in air through the mouth and nose. Explain how the lungs function in the human body.

They coordinate the movement of the heart.
They pass oxygen from the air into the blood.
They pump the blood throughout the body.
They remove carbon dioxide from the air.

Answer 1

Air comes into the body through the nose or mouth, and enters the airways. Airways are the tubes that carry air into our lungs. As they branch out, they become smaller and smaller, and eventually connect to parts of the lungs called alveoli, small air sacs where fresh oxygen from the air is exchanged for carbon dioxide in the blood.

Answer 2

They pass oxygen from the air into the blood.

Step-by-step explanation:

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