Respiratory system

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Last updated 10:47 AM on 4/22/26
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6 Terms

1
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What is the respiratory system?

A system that helps us breathe in oxygen and breathe out carbon dioxide

2
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Where does air enter the body?

Nose or mouth

3
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What is the trachea?

A tube that carries air to the lungs

4
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What are bronchi?

Two tubes that carry air into each lung

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What are the lungs?

Organs that help us breathe and exchange gases

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Why do we need oxygen?

To give energy to our cells