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What is the primary function of the diaphragm during respiration?

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Question: What is the primary function of the diaphragm during respiration?

Options:

  1. To filter air
  2. To increase lung volume
  3. To produce sound
  4. To transport oxygen

Correct Answer: To increase lung volume

Solution: 

The diaphragm contracts to increase lung volume during inhalation, allowing air to flow into the lungs.

What is the primary function of the diaphragm during respiration?

Practice Questions

Q1
What is the primary function of the diaphragm during respiration?
  1. To filter air
  2. To increase lung volume
  3. To produce sound
  4. To transport oxygen

Questions & Step-by-Step Solutions

What is the primary function of the diaphragm during respiration?
  • Step 1: Understand that the diaphragm is a muscle located below the lungs.
  • Step 2: Know that the diaphragm plays a key role in breathing.
  • Step 3: When you inhale, the diaphragm contracts and moves downwards.
  • Step 4: This contraction increases the space in the chest cavity.
  • Step 5: As the chest cavity expands, air is drawn into the lungs.
  • Step 6: When you exhale, the diaphragm relaxes and moves back up, pushing air out of the lungs.
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