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- 1. Multiple Choice
The intercostal muscles are contracting and the ribs move upwards
INHALATION
EXHALATION
- 2. Multiple Choice
The diaphragm contracts and becomes flat
INHALATION
EXHALATION
- 3. Multiple Choice
Thoracic cavity (chest cavity) volume decreases and the air is forced out of the lungs
INHALATION
EXHALATION
- 4. Multiple Choice
Air pressure inside the lungs is higher
INHALATION
EXHALATION
- 5. Multiple Choice
The diagram shows the process of
INHALATION
EXHALATION
- 6. Multiple Choice
The diagram shows the process of
INHALATION
EXHALATION
- 7. Multiple Choice
Oxygen content is higher than carbon dioxide
INHALATION
EXHALATION
- 8. Multiple Choice
Carbon dioxide content is higher than oxygen
INHALATION
EXHALATION
- 9. Multiple Choice
When the thoracic cavity (chest cavity) increases, the air pressure inside the lungs decreases.
INHALATION
EXHALATION
- 10. Multiple Choice
The intercostal muscles are relaxing and the ribs move downwards
INHALATION
EXHALATION
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