Describe the structure of the cochlea

Reference no: EM133484902

Questions:

1. Barry has a head cold. His hearing is muffled, but he can still hear Judy talking to him if she raises her voice. If the problem is one at the middle ear, why has Barry's cold caused his hearing to be muffled? Which structures in his ear are not functioning properly? How do these structures function in a healthy person?

2. Describe the structure of the cochlea and the types of fluids in each of the three compartments

3. State the two types of cochlear receptor cells. Explain the importance of sterocillia on the hair cells. Tell us the order of the organization of stereocilia on a hair cell and why this order matters.

4. Explain how the movement of the stereocilia of the cochlear hair cells results in a change in the hair cells resting membrane potential.

5. Explain why each auditory nerve fibre from the cochlea is most sensitive to one frequency of sound and to just a narrow range at louder levels. Then tell us which part of the cochlea would be damaged to cause the high frequency hearing losses that occur in ageing?

Reference no: EM133484902

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