#1
Which part of the ear is responsible for detecting sound vibrations?
Cochlea
ExplanationCochlea detects sound vibrations.
#2
What is the function of the vestibular system?
To maintain balance and spatial orientation
ExplanationVestibular system maintains balance and spatial orientation.
#3
Which cranial nerve is responsible for transmitting auditory information to the brain?
Cranial nerve VIII
ExplanationCranial nerve VIII transmits auditory information to the brain.
#4
How does the cochlea encode different frequencies of sound?
By varying the location of the hair cells stimulated
ExplanationCochlea encodes sound frequencies by stimulating different hair cell locations.
#5
What is the function of the ossicles in the middle ear?
To amplify sound waves
ExplanationOssicles amplify sound waves in the middle ear.
#6
Which structure in the inner ear is responsible for detecting changes in head position and movement?
Semicircular canals
ExplanationSemicircular canals detect changes in head position and movement.
#7
Which part of the inner ear contains the receptors for both hearing and equilibrium?
Vestibule
ExplanationVestibule contains receptors for hearing and equilibrium.
#8
What is the purpose of the otolithic organs in the vestibular system?
To detect changes in head position and linear acceleration
ExplanationOtolithic organs detect changes in head position and linear acceleration.
#9
What is the role of the eustachian tube in the ear?
To equalize air pressure between the middle ear and the atmosphere
ExplanationEustachian tube equalizes air pressure in the middle ear.
#10
What is the primary function of the auditory nerve?
To transmit sound waves to the brain
ExplanationAuditory nerve transmits sound waves to the brain.
#11
How does the brain process sound signals to determine the location of a sound source?
By comparing the timing of sound arrival at each ear
ExplanationBrain determines sound source location by comparing arrival times at each ear.
#12
What is presbycusis?
A gradual loss of hearing that occurs as people age
ExplanationPresbycusis is gradual age-related hearing loss.
#13
Which part of the brainstem is responsible for processing auditory information?
Midbrain
ExplanationMidbrain processes auditory information.
#14
What is the function of the vestibulocochlear nerve (cranial nerve VIII)?
To transmit auditory and vestibular information to the brain
ExplanationVestibulocochlear nerve transmits auditory and vestibular information to the brain.