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Discuss one source of presbycusis involving a problem with the outer/middle ear.

The assignment: (1–2 pages)

First, explain how normal hearing occurs. Include in your discussion the following points:
How is sound transmitted from the environment outside the body to the inner ear? What structures are involved, and how do they transmit sound?
What happens in the inner ear (cochlea) when sound waves are converted to neural signals? How is sound frequency (pitch) processed?
Next, summarize the causes of presbycusis and explain how they will interfere with the normal processing of sound as outlined above.
Discuss one source of presbycusis involving a problem with the outer/middle ear.
Discuss one source of presbycusis involving a problem with the inner ear.
Finally, describe what it might be like to have presbycusis. Include the following points:
If you have normal hearing now, how would your ability to converse with others be affected?
What activities that you now enjoy would be limited by this condition?
How would such a condition affect your work life?


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