Expiration (Exhalation) Occurs When ________

question 36

Multiple Choice

Expiration (exhalation) occurs when ________.

• A) the diaphragm and intercostal muscles contract
• B) air moves into the lungs
• C) intrapulmonary volume increases
• D) the diaphragm and intercostal muscles relax
• E) intrapulmonary pressure decreases

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Definitions:

Income Elasticity

A measure of how the quantity demanded of a good or service changes in response to a change in consumer income.

Inferior Good

A type of good for which demand decreases when consumers' income increases, opposite to normal goods.

Perfectly Inelastic

Describes a situation where the demand for a good does not change in response to a change in price.

Price Elasticity

A measure of how much the quantity demanded of a good responds to a change in the price of that good, defined as the percentage change in quantity demanded divided by the percentage change in price.