The Use of a Mirror to View Areas of the Oral

question 33

Multiple Choice

The use of a mirror to view areas of the oral cavity not seen directly is termed ____________.

• A) indirect vision
• B) direct vision
• C) reflection of light
• D) transillumination

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Definitions:

Variable Cost

Costs that vary in direct proportion to changes in levels of production or business activity, such as materials and labor.

Fixed Cost

A cost that does not change with the volume of sales.

Fixed Costs

Expenses that do not change in proportion to the activity of a business, such as rent, salaries, and loan payments.

Variable Costs

Costs that vary directly with the level of production or sales, such as materials and labor.