Auditory and Vestibular Neurology Quiz
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activates anterior canal
A. rolling
B. pitching
C. yaw
designed to detect and transduce head rotation and angular acceleration
A. semicircular canals
B. ampulla
C. otolith organs
D. vestibular hair cells
waves in _____ shake tectorial and basilar membranes
A. fluid
B. liquid
C. stapes
D. sound
activates posterior canal
A. rolling
B. pitching
C. yaw
(basilar membrane) base is narrow, thick, stiff, close to base
A. high frequency
B. low frequency
each frequency with energy will destroy waves in basilar membrane causing hair cells in region to fire
A. TRUE
B. FALSE
regions in the inner ear that contain macula (hair cells in a gel with otoliths on top)
A. ampulla
B. utricle and saccule
C. simicircular canals
transduce the mechanical energy created by head motion into electrical signal that travels down CN VIII, work very similar to hair cells in cochlea
A. ampulla
B. semicircular canals
C. otolith organs
D. vestibular hair cells
balance in the head and neck
A. LVN-spinal cord
B. M/IVN-upper spinal cord/cranial nerves
C. SVN-MLF-CNIII,IV,VI
by comparing intensity and timing of neuron firing in each ear, we can determine vertical location of sound source
A. TRUE
B. FALSE
information from ipsilateral medial geniculate body, info sent to association areas for further processing
A. primary auditory cortex (A1)
B. heschl’s gyrus
C. vestibular
D. utricle
each semicircular canal is filled with fluid that causes gel-like cupola to shift
A. TRUE
B. FALSE
our ears are offset horizontally making up/down localization less difficult
A. TRUE
B. FALSE
(basilar membrane) wide, thin, floppy, close to apex
A. low frequency
B. high frequency
calculates compensation in eye muscles to maintain fixed gaze position
A. VOR
B. semicircular canals
C. otolith organs
D. saccule
starts processing timing and intensity difference for localization of sound
A. cochlear nucleus
B. superior olive
C. medial geniculate
D. auditory cortex
transmits info from the inner ear to the brainstem
A. vestibulocochlear nerve (CN VIII)
B. peripheral nerve
detect linear acceleration in vertical (saccule) and horizontal (utricle) planes
A. semicircular canals
B. otolith organs
C. vestibular hair cells
D. ampulla
dilated portion at the end of each semicircular canal
A. ampulla
B. utricle
C. saccule
D. vestibular
complex sound waves are decomposed into individual frequencies in cochlea
A. TRUE
B. FALSE
combined firing across cochlea represents
A. complex sound waves
B. tonotopic organization
C. auditory pathway
D. NSCLIMA
waves in ________ press hair cells into tectorial membrane, bending cilia, firing receptor cells
A. fluid
B. solids
C. liquids
D. sounds
activates lateral canal
A. rolling
B. pitching
C. yaw
utricle and saccule are otolith organs
A. TRUE
B. FALSE
fluid flows around into scale tympani and releases less energy out round window
A. TRUE
B. FALSE
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