Eighty-year-old Mr. Johnson was becoming slightly deaf. To test h...

Question

Eighty-year-old Mr. Johnson was becoming slightly deaf. To test his hearing, his doctor held a vibrating tuning fork tightly against the back of Mr. Johnson's skull. This sent vibrations through the bones of the skull, setting the fluid in the cochlea in motion. Mr. Johnson could hear the tuning fork this way, but not when it was held away from the skull a few inches from his ear. The problem was probably in the _________ . (Explain your answer.)
a. auditory nerve leading to the brain
b. hair cells in the cochlea
c. bones of the middle ear
d. fluid of the cochlea

Accepted Answer

Okay everyone for this practice problem we have which of the following statements best describes the function of the cochlea in the human ear. So our answer will be the function of the cochlea. Now recall that the ear has three main parts the out the middle and the inner and the coakley A. Can be found within the inner ear. Its function is to receive vibrations from the temp panic membrane and is responsible for converting those vibrations so it converts vibrations. So let's take a look at our options. We have a. It amplifies the vibration produced by the eardrum. Remember that vibration amplification occurs within the obstacles in the middle here and not in the cochlea. So A. Is incorrect. Then we have B. It helps us keep our balance. This is also a function of the inner ear. But remember that it's the semicircular canals within the inner ear that's responsible for this and not the cochlear to therefore be is incorrect as well. Next we have see it vibrates when sound waves reach it and transmit them to the brain. This is done by the tim panic membrane and so therefore we can eliminate option C. As well. Lastly we have option D. It converts the vibrations of the eardrum into electrical impulses. This correctly identifies the function of the cochlea and therefore D. Is our correct answer. Alright everyone, I hope this was helpful and I'll see you for the next practice problem

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