The Mucosal Folds in the Bladder (Rugae)

question 53

Multiple Choice

The mucosal folds in the bladder (rugae)

• A) act to increase the surface area for absorption.
• B) thicken the bladder wall so that it does not burst.
• C) have the same basic function as transitional epithelium-accommodating stretch as the bladder fills.
• D) are not present in life, only in cadavers.

---

Definitions:

Opportunity Costs

The loss of potential gain from other alternatives when one particular alternative is chosen over others.

Marginal Revenue

The supplementary income produced through the sale of an extra unit of a product or service.

Equilibrium Price

The price at which the quantity of goods suppliers are willing to produce equals the quantity of goods consumers are willing to buy.

Normal Profit

The minimum level of profit necessary for a company to remain competitive in the market, covering opportunity costs but not generating economic profit.