Expiration During Quiet Breathing

question 90

Multiple Choice

Expiration during quiet breathing

• A) is an active process.
• B) requires more muscle contractions than inspiration.
• C) is due to contraction of the diaphragm and elevation of the ribs.
• D) occurs when the diaphragm and external intercostal muscles relax.
• E) is not affected by the elastic properties of the lungs.

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