Our Ability to Distinguish One High-Frequency Sound from Another-For Example

question 15

Multiple Choice

Our ability to distinguish one high-frequency sound from another-for example, 8000 Hz from 9000 Hz-depends on

• A) which part of the basilar membrane has hair cells with the greatest activity.
• B) the frequency of action potentials produced by each axon in the auditory nerve.
• C) differences in response between cells in the left ear and cells in the right ear.
• D) differences in the velocity of individual action potentials of the auditory nerve.

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Definitions:

Lysozyme

An enzyme found in saliva, tears, and other secretions, capable of breaking down bacterial cell walls to fight infection.

Bony Labyrinth

A complex system of passages and cavities within the temporal bone of the skull, important for hearing and balance.

Endolymph

A fluid within the membranous labyrinth of the inner ear that plays an essential role in the transduction of sound vibrations to neural signals.

Temporal Bone

A bone forming part of the side of the skull and containing the inner ear.