What Is the Mechanism of Action of Long-Acting Beta Agonists

question 33

Multiple Choice

What is the mechanism of action of long-acting beta agonists?

• A)Stimulation of beta-2 antagonist receptors in the lungs,resulting in a relaxation of bronchial smooth muscle
• B)Stimulation of beta-2 adrenergic receptors in the lungs,resulting in a relaxation of bronchial smooth muscle
• C)Stimulation of beta-2 adrenergic receptors in the lungs,resulting in a contraction of bronchial smooth muscle
• D)Decreased stimulation of beta-2 adrenergic receptors in the lungs,resulting in a relaxation of bronchial smooth muscle

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Definitions:

Monopolistically Competitive

A market structure characterized by many firms selling products that are similar but not identical, allowing for significant influence over prices.

Long-Run

A time period in which all factors of production and costs are variable, allowing for the adjustment of all inputs.

Normal Profit

A rephrased definition: The minimum earning potential that keeps a firm operating in a competitive market, synonymous with break-even profitability.

Downward-Sloping Demand

A concept in economics that illustrates how the quantity demanded of a good decreases as its price increases, assuming all other factors remain constant.