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Questions and Answers
Which muscle contracts when you inhale?
Which muscle contracts when you inhale?
- The abdominal muscles
- The diaphragm muscle (correct)
- The chest muscle
- The rib muscles
What happens to the size of the chest cavity when you inhale?
What happens to the size of the chest cavity when you inhale?
- It decreases
- It increases (correct)
- It stays the same
- It fluctuates
What causes air to enter the lungs when you inhale?
What causes air to enter the lungs when you inhale?
- Decreased air pressure inside the lungs
- Decreased air pressure outside the lungs
- Increased air pressure outside the lungs (correct)
- Increased air pressure inside the lungs
What happens to the diaphragm muscle when you exhale?
What happens to the diaphragm muscle when you exhale?
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What happens to the size of the chest cavity when you exhale?
What happens to the size of the chest cavity when you exhale?
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Study Notes
Inhalation Process
- The diaphragm muscle contracts when you inhale.
- The size of the chest cavity increases when you inhale, allowing the lungs to expand and fill with air.
- Air enters the lungs when you inhale due to the decrease in pressure inside the chest cavity, allowing air to flow in from the atmosphere.
Exhalation Process
- The diaphragm muscle relaxes when you exhale, decreasing the volume of the chest cavity.
- The size of the chest cavity decreases when you exhale, causing the lungs to compress and push air out.
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Description
Test your knowledge of the respiratory system and how breathing works with this informative quiz. Learn about the role of the diaphragm and ribs in the inhalation process and understand how air pressure affects the movement of air into the lungs.
