When the Diaphragm Contracts

question 20

Multiple Choice

When the diaphragm contracts

• A) The volume of the thoracic cavity increases.
• B) Lung volume increases as the lungs are forced to expand.
• C) The intra-alveolar pressure increases.
• D) The volume of the thoracic cavity increases and lung volume increases as the lungs are forced to expand.
• E) All of these.

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Child's Development

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