Three Small Bones Connect the Tympanic Membrane to the Oval

question 30

Multiple Choice

 Three small bones connect the tympanic membrane to the oval window. What is the function of these bones?

• A) They hold the tympanic membrane in place.
• B) They convert airwaves into waves of greater pressure.
• C) They spread out the air waves over an area of larger diameter.
• D) They change the frequency of air waves into lower frequencies that can be heard.

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Definitions:

Income Before Taxes

Another term for pretax income, indicating the amount earned by a business before subtracting taxes.