CSD EXAM 2 (PRE/POST-CLASS QUIZZES)
Which of the following processes is performed by the pinna? (Select all that apply.)
- amplification
- funneling
- filtering
- rejection - Answer -funneling & filtering
The tympanic membrane transfers vibrations from ______ to the ______ - Answer -air /
ossicles
The peripheral auditory system consists of (select all that apply):
- the brainstem
- the inner ear
- the middle ear
- the midbrain
- the auditory cortex
- the external ear - Answer -inner ear / middle ear / external ear
T/F The pinna helps us in localizing sounds when the sound source is in the median
plane. - Answer -True
The middle ear is important because: - Answer -it matches the impedance of the air in
the ear canal with the fluid in the cochlea
When you are in an airplane and your ears "pop", which part of the middle ear is
involved in this "pop"? - Answer -the Eustachian tube
The ossicles are connected to the cochlea via the _________________. - Answer -oval
window
The thumbtack analogy works for the sounds boosted by the middle ear because the
_______ is bigger than the ________ - Answer -tympanic membrane / oval window
The cochlea is where _______________ occurs. (Select all that apply.)
- sound localization
- transduction
- impedance matching
- separation of frequency components - Answer -transduction & separation of
frequency components
Top chamber of the cochlea - Answer -scala vestibuli
Middle chamber of the cochlea - Answer -scala media
, Bottom chamber of the cochlea - Answer -scala tympani
T/F The cochlear traveling wave is the same as a sound wave. - Answer -False (it is
like a surface wave)
The place on the basilar membrane where the characteristic frequency = 1 kHz is: -
Answer -the place where the movement is maximal when you put in a 1 kHz tone
Which of the following parts of the inner ear does not take part in hearing?
- scala tympani
- scala vestibuli
- organ of Corti
- semicircular canals - Answer -semicircular canals
The most basal end of the basilar membrane is responsive to ________________
frequencies. - Answer -high
What is tonotopic organization? - Answer -Spatial arrangement of the basilar
membrane based on which frequencies achieve maximal traveling wave amplitude
The pushing of the stapes into the oval window causes the __________________ to be
pushed out. - Answer -round window
As you move from base to apex, the cochlea gets _________ , and the basilar
membrane gets _________ and __________. - Answer -narrower / wider / looser
Someone shrunk you down to the size of a grain of rice and dropped you into the
tympanic cavity. You see a stirrup-shaped bone attached to the wall that you are facing.
You also see a translucent membrane lower down, and in between the bone and this
translucent window you see a big bulge. You realize you are staring at the __________
wall of the middle ear, and that the translucent membrane is the _________. - Answer -
medial / round window
How does the acoustic reflex change sound transduction through the middle ear? -
Answer -It attenuates low frequencies
The malleolar-incudal joint is formed by the: - Answer -head of malleus and body of
incus
When the stapes pushes into the oval window, which membrane pushes out? - Answer
-round window
The traveling wave occurs because of the pressure differential between: - Answer -
scala vestibuli and scala tympani
Which of the following processes is performed by the pinna? (Select all that apply.)
- amplification
- funneling
- filtering
- rejection - Answer -funneling & filtering
The tympanic membrane transfers vibrations from ______ to the ______ - Answer -air /
ossicles
The peripheral auditory system consists of (select all that apply):
- the brainstem
- the inner ear
- the middle ear
- the midbrain
- the auditory cortex
- the external ear - Answer -inner ear / middle ear / external ear
T/F The pinna helps us in localizing sounds when the sound source is in the median
plane. - Answer -True
The middle ear is important because: - Answer -it matches the impedance of the air in
the ear canal with the fluid in the cochlea
When you are in an airplane and your ears "pop", which part of the middle ear is
involved in this "pop"? - Answer -the Eustachian tube
The ossicles are connected to the cochlea via the _________________. - Answer -oval
window
The thumbtack analogy works for the sounds boosted by the middle ear because the
_______ is bigger than the ________ - Answer -tympanic membrane / oval window
The cochlea is where _______________ occurs. (Select all that apply.)
- sound localization
- transduction
- impedance matching
- separation of frequency components - Answer -transduction & separation of
frequency components
Top chamber of the cochlea - Answer -scala vestibuli
Middle chamber of the cochlea - Answer -scala media
, Bottom chamber of the cochlea - Answer -scala tympani
T/F The cochlear traveling wave is the same as a sound wave. - Answer -False (it is
like a surface wave)
The place on the basilar membrane where the characteristic frequency = 1 kHz is: -
Answer -the place where the movement is maximal when you put in a 1 kHz tone
Which of the following parts of the inner ear does not take part in hearing?
- scala tympani
- scala vestibuli
- organ of Corti
- semicircular canals - Answer -semicircular canals
The most basal end of the basilar membrane is responsive to ________________
frequencies. - Answer -high
What is tonotopic organization? - Answer -Spatial arrangement of the basilar
membrane based on which frequencies achieve maximal traveling wave amplitude
The pushing of the stapes into the oval window causes the __________________ to be
pushed out. - Answer -round window
As you move from base to apex, the cochlea gets _________ , and the basilar
membrane gets _________ and __________. - Answer -narrower / wider / looser
Someone shrunk you down to the size of a grain of rice and dropped you into the
tympanic cavity. You see a stirrup-shaped bone attached to the wall that you are facing.
You also see a translucent membrane lower down, and in between the bone and this
translucent window you see a big bulge. You realize you are staring at the __________
wall of the middle ear, and that the translucent membrane is the _________. - Answer -
medial / round window
How does the acoustic reflex change sound transduction through the middle ear? -
Answer -It attenuates low frequencies
The malleolar-incudal joint is formed by the: - Answer -head of malleus and body of
incus
When the stapes pushes into the oval window, which membrane pushes out? - Answer
-round window
The traveling wave occurs because of the pressure differential between: - Answer -
scala vestibuli and scala tympani
