Maximal Expiratory Flow Rates Decrease During Exhalation (I

question 7

Multiple Choice

Maximal expiratory flow rates decrease during exhalation (i.e.,in going from higher to lower lung volumes) for the following reasons:

• A)Intra-airway pressures increase and elastic recoil pressure increases at lower lung volumes.
• B)Intra-airway pressures decrease and elastic recoil pressure increases at lower lung volumes.
• C)Intra-airway pressures increase and elastic recoil pressure decreases at lower lung volumes.
• D)Intra-airway pressures decrease and elastic recoil pressure decreases at lower lung volumes.
• E)There is no change in intra-airway pressures or elastic recoil pressures at lower lung volumes.

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Definitions:

Richard Alm

An economic journalist and author known for co-authoring publications on economic issues, notably with economist William A. "Sandy" Darity.

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The use of goods and services by households, which is a primary component of GDP.

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