Q. What is the primary function of the cochlea in the ear?
-
A.
To amplify sound waves
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B.
To convert sound waves into electrical signals
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C.
To protect the inner ear from loud noises
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D.
To equalize pressure in the ear
Solution
The cochlea converts sound waves into electrical signals that can be interpreted by the brain.
Correct Answer:
B
— To convert sound waves into electrical signals
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Q. What is the primary role of the auditory ossicles?
-
A.
To amplify sound waves
-
B.
To protect the inner ear
-
C.
To convert sound waves into electrical signals
-
D.
To equalize pressure in the ear
Solution
The auditory ossicles amplify sound waves and transmit them from the eardrum to the inner ear.
Correct Answer:
A
— To amplify sound waves
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Q. What type of sound wave is characterized by a frequency above 20,000 Hz?
-
A.
Infrasound
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B.
Audible sound
-
C.
Ultrasound
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D.
Subsonic sound
Solution
Ultrasound refers to sound waves with frequencies above 20,000 Hz, which are not audible to humans.
Correct Answer:
C
— Ultrasound
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Q. Which condition is characterized by hearing loss due to damage to the inner ear or auditory nerve?
-
A.
Conductive hearing loss
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B.
Sensorineural hearing loss
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C.
Mixed hearing loss
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D.
Central auditory processing disorder
Solution
Sensorineural hearing loss occurs due to damage to the inner ear or the auditory nerve.
Correct Answer:
B
— Sensorineural hearing loss
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Q. Which part of the ear is responsible for balance?
-
A.
Cochlea
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B.
Eustachian tube
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C.
Semicircular canals
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D.
Auditory nerve
Solution
The semicircular canals are responsible for maintaining balance and spatial orientation.
Correct Answer:
C
— Semicircular canals
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Q. Which part of the ear vibrates in response to sound waves and transmits these vibrations to the inner ear?
-
A.
Auricle
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B.
Tympanic membrane
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C.
Ossicles
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D.
Auditory canal
Solution
The tympanic membrane, or eardrum, vibrates in response to sound waves and transmits these vibrations.
Correct Answer:
B
— Tympanic membrane
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Q. Which structure in the ear helps to equalize pressure between the middle ear and the atmosphere?
-
A.
Cochlea
-
B.
Eustachian tube
-
C.
Auricle
-
D.
Semicircular canals
Solution
The Eustachian tube helps to equalize pressure between the middle ear and the atmosphere.
Correct Answer:
B
— Eustachian tube
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Q. Which type of hearing loss is often caused by blockage in the ear canal?
-
A.
Conductive hearing loss
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B.
Sensorineural hearing loss
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C.
Presbycusis
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D.
Tinnitus
Solution
Conductive hearing loss is often caused by blockage in the ear canal, preventing sound from reaching the inner ear.
Correct Answer:
A
— Conductive hearing loss
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