The auditory system is a body system that is responsible for the sense of hearing. The primary auditory cortex lies in the superior temporal gyrus of the temporal lobe and extends into the lateral sulcus and the transverse temporal gyri. Test out what else you know about the system through the questions below.
10-10,000 Hz
20-20,000 Hz
30-30,000 Hz
Higher frequency
Higher pitch
Louder sound
10 Log Units
20 Log Units
12 Log Units
100 Log Units
15-20 dB
25-30 dB
40-50 dB
Tympanic membrane
Basial membrane
External auditory meatus
Ossicular system
The decrease in surface area from the tympanic membrane to oval window
The lever action of the ossicles
The auricle of the ear
The high sensitivity of the hair cells
More than one of the above
Skewed basilar membrane
Fractured ossicles
Missing hair cells/scar tissue
Tymapnic membrane deflecting these frequencies
Contraction reflex of ossicular muscles
Oval window selectively choosing which frequencies can be transmitted
None; that's why hearing loss can occur due to damaging sounds
True
False
Amount of depolarization of cell at peak moment
Recruitment of cells at ends of basilar membrane
Certain cells only respond to loud sounds
2 of the above
All of the above
Greater; decrease
Less; increase
Greater; increase
Less; decrease
Low; high
High; low
Mid; high
High; mid
Na
Cl
H
K
-150 mV
+150 mV
-60 mV
+60 mV
True
False
True
False
Inferior colliculus
Facial nerve
Cochlear nuclei in medulla
Spiral ganglion axons
Superior olive
Inferior colliculus
Ossicular reflex
Positive Feedback: inferior colliculus
Negative Feedback: inferior colliculus
Negative Feedback: superior olive
Positive Feedback: superior olive
Facial
Optic
Vestibulocochlear
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