When Blood Flow to an Area of the Lungs Is

question 117

Multiple Choice

When blood flow to an area of the lungs is reduced but the area receives normal air flow all of the following occur except

• A) the concentration of CO₂ in this area will be decreased.
• B) the change in CO₂ concentration will cause the smooth muscles of the local airways to relax.
• C) the change in CO₂ concentration will lead to increased resistance of local airways.
• D) the change in O₂ concentration will lead to dilation of local blood vessels.
• E) the change in O₂ concentration will lead to decreased vascular resistance.

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Definitions:

Black Market

An illegal trade of goods or services that are not sanctioned by the authority, often to avoid taxes or because the goods are prohibited.

Gray Market

involves the trade of legal goods through unauthorized, unofficial, or unintended channels, usually not illegal but discouraged by manufacturers.

Resource Market

The marketplace where resources or inputs (like labor, capital, and raw materials) used to produce goods and services are bought and sold.

Excess Burden

Refers to the cost to society created by market inefficiency, which occurs when supply and demand are out of equilibrium.