Science Breathing summer exam

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15 Terms

1
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Q: What is the main function of the breathing system?

A: To bring in oxygen (O) and release carbon dioxide (CO2)

2
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Q: What is the tube called that carries air to the lungs?

A: The Trachea

3
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Q: What are the tiny air sacs in the lungs called?

A: Alveoli

4
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Q: Which muscle helps you breathe by moving up and down?

A: The Diaphram

5
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Q: What are the two main parts of the breathing system where gas exchange happens?

A: The alveoli and capillaries

6
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Q: What is the process called when oxygen moves from the alveoli into the blood?

A: Gas exchange

7
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Q: What do your lungs do when you breathe in?

A: They inflate and expand

8
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Q: What happens to the diaphragm when you breathe in?

A: It gets lower to make room for the inflated lungs

9
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Q: What happens when you breathe out?

A: The diaphragm relaxes and moves upward, pushing air out of the lungs.

10
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Q: What happens to your heart rate when you do exercise

A: It spikes up

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