What is the main function of the respiratory system?
Respiratory System Test Review

Flashcard
•
Science
•
4th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
Back
The main function of the respiratory system is to supply the body with oxygen and remove carbon dioxide.
2.
FLASHCARD QUESTION
Front
What happens to the diaphragm when you inhale?
Back
The diaphragm contracts and flattens out, allowing the lungs to expand and fill with air.
3.
FLASHCARD QUESTION
Front
True or False: The right lung is smaller than the left lung.
Back
False, the right lung is larger than the left lung.
4.
FLASHCARD QUESTION
Front
What gas do we need to live?
Back
Oxygen.
5.
FLASHCARD QUESTION
Front
What happens when you exhale?
Back
When you exhale, you release carbon dioxide from your body.
6.
FLASHCARD QUESTION
Front
True or False: Your body needs oxygen to live.
Back
True.
7.
FLASHCARD QUESTION
Front
What are the two main gases exchanged in the lungs?
Back
Oxygen and carbon dioxide.
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