As Hearing Takes Place, an Electrical Signal Is Created from the Physical

question 20

Multiple Choice

As hearing takes place, an electrical signal is created from the physical signal of the sound waves, eventually sending nerve impulses to the brain via the auditory nerve. What actually causes the electrical signal to be formed?

• A) Bending of the hair cells in the organ of Corti by the basilar membrane.
• B) Contact between the hammer and the anvil.
• C) Friction between the basilar and tectorial membranes.
• D) Passage of the cochlear fluid through the oval window.

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Definitions:

Sinking Funds

Reserves of money set aside by a corporation or government to repay a debt or bond issue at or before maturity.

Bondholder

An investor who owns bonds issued by a corporation or government, lending them money in exchange for periodic interest payments and the return of principal at maturity.

Issuer

An entity that issues or proposes to issue any security, or the entity on whose behalf the securities are issued.

Times-Interest-Earned Ratio

A financial ratio that measures a company's ability to meet its interest payments on outstanding debt.