272245
Beschreibung
Quiz von Petite Piplup, aktualisiert more than 1 year ago
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Erstellt von Petite Piplup
vor fast 11 Jahre
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Frage 1
Frage
What are the components of the middle ear?
Antworten
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Vestibular canal, middle ear muscles, cochlea
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Cochlea, middle ear muscles, ossicles
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Eustachian tube, middle ear muscles, cochlea
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Ossicles, middle ear muscles, Eustachian tube
Frage 2
Frage
What is the function of the ossicles?
Antworten
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Amplification
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Decreasing instensity
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Localisation
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Protection
Frage 3
Frage
How else does the middle ear increase amplification?
Antworten
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The middle ear muscles vibrate helping sounds reverberate
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17:1 ratio of oval window to tympanic membrane leading to increased intenisity
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The opening and closing of the Eustachian tube intensifies vibrations
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The external auditory meatus is funnel shaped increasing amplitude further down
Frage 4
Frage
a) How does the middle ear help protect against loud noises?
b) What is this effective against?
Antworten
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a) Ossicles send some vibrations back toward tympanic membrane and out the ear b) Short term and self-generated sounds
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a) Middle ear muscles clench around ossicles b) Only sounds above 45 deciBels
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a) Middle ear muscles clench around ossicles b) Short term and self-generated sounds
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a) Ossicles send some vibrations back toward tympanic membrane and out the earb) Only sounds above 45 deciBels
Frage 5
Frage
What is the function of the Eustachian tube?
Antworten
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Equalize the frequency of most sounds so that they are within the human-hearing spectrum
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Decrease the intensity of sounds before they reach the inner ear
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Amplify sounds before they reach the inner ear
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Equalize pressure build-up in the ear
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