Inner Ear Neuroanatomy Quiz
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Which part of the inner ear is primarily responsible for detecting head motion and acceleration?
A. Cochlea
B. Semicircular canals
C. Tympanic membrane
D. Organ of corti
The vestibulo-ocular reflex (VOR) is responsible for:
A. Maintaining balance while standing
B. Controlling eye movements to stabilize gaze during head movement
C. Transducing sound vibrations into electrical signals
D. Detecting changes in air pressure
The utricle and saccule are components of which structure in the inner ear?
A. Cochlea
B. Semicircular canals
C. Round window
D. Vestibule
The crista (singular) is the sensory component of which part of the vestibular system?
A. Utricle
B. Saccule
C. Semicircular canal
D. Cochlear
Which cranial nerve is primarily associated with transmitting vestibular information to the brain?
A. CN5
B. CN6
C. CN7
D. CN8
Sensorineural hearing loss is typically associated with damage to:
A. Tympanic membrane
B. Cochlea or auditory nerve
C. Ossicles in the middle ear
D. Semicircular canals
Sound waves enter the ear canal and cause the __________ to vibrate
A. Vestibule
B. Round window
C. Tympanic membrane
D. Cochlea
If you turn your head to the left, what happens to the hair cells in the left vestibular sytstem?
A. The stereocilia falls onto the kinocilia
B. The kinocilia falls onto the stereocilia
C. Both of the above
D. None of the above
The organ of Corti is located within which part of the cochlear?
A. Scala vestibuli
B. Scala tympani
C. Scala media
D. None of the above
How many cristae are present in each vestibular system?
A. 2
B. 3
C. 4
D. 5
Cristae are located within the
A. Ampulla
B. Macula
C. Organ of corti
D. None of the above
Which part of the vestibular system are responsible for detecting linear acceleration and head position with respect to gravity?
A. Utricle
B. Saccule
C. Both of the above
D. None of the above
The primary auditory cortex is located in which lobe of the brain?
A. Frontal lobe
B. Parietal lobe
C. Temporal lobe
D. Occipital lobe
Which part of the vestibular system is particularly important for detecting rotational movements in the horizontal plane?
A. Utricle
B. Saccule
C. Lateral semicircular canals
D. Anterior semicircular canals
The cochlea is responsible for
A. Detecting head movements
B. Converting sound vibrations into electrical signals
C. Maintaining balance
D. Fixating gaze
Why do you lose hearing if the endolymph inside the cochlear breaches the vestibular membrane?
A. Compression of the organ of corti
B. Organ of corti is depolarised
C. Organ of corti is hyperpolarised
D. None of the above
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