During Expiration, Why Does Gas Flow Out from the Lungs

question 50

Multiple Choice

During expiration, why does gas flow out from the lungs to the atmosphere?

• A) P_alv is less than at the airway opening.
• B) P_alv is the same as at the airway opening.
• C) P_alv is greater than at the airway opening.
• D) Airway pressure is greater than P_alv.

Understand the concept of technology forcing in environmental regulation.

Recognize the incentives and tools available for pollution control including subsidies and direct regulation.

Understand the purpose and application of the National Ambient Air Quality Standards.

Identify the variety of environmental regulatory strategies (e.g., taxes, permissible limits, technology standards).

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