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Animation: Effect of Sound Waves on Cochlear Structures (Quiz 2)
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View the animation below, then complete the quiz to test your knowledge of the concept.






1Sound vibrations reach the cochlea via...
A)the footplate of the stapes in the oval window.
B)the footplate of the stapes in the round window.
C)the tympanic membrane.
D)the three bones of the middle ear.
E)the basilar membrane.



2Short wavelengths from high pitched sounds cause displacement of the basilar membrane...
A)near the oval window.
B)far from the oval window.
C)near the round window.
D)far from the round window.
E)near the tympanic membrane.



3Long wavelengths from low pitched sounds cause displacement of the basilar membrane...
A)near the oval window.
B)far from the oval window.
C)near the round window.
D)far from the round window.
E)near the tympanic membrane.



4The function of the round window is to dampen sounds after they stimulate the hair cells.
A)True
B)False



5The first ear structure that sound waves cause to vibrate is the tympanic membrane.
A)True
B)False







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