How Do Methylxanthines Work

question 20

Multiple Choice

How do methylxanthines work?

• A)They inhibit an enzyme in smooth muscle cells.
• B)They promote bronchoconstriction.
• C)They decrease excitability and increase relaxation.
• D)They are used to slow or stop vomiting and diarrhea.

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Definitions:

Incentive To Produce

Factors or motivations that encourage firms or individuals to engage in production, often driven by the potential for profit or market demand.

Before-Tax Total Income

The total income earned by an individual or a business before any taxes are deducted.

Poorest 20 Percent

The segment of a population that ranks at the bottom fifth in terms of income.

Income Mobility

The ability of individuals or families to move up or down the economic ladder within a society over time.