Auditory and Vestibular Neurology Quiz
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sense head rotation and motion
A. VOR
B. saccule
C. utricle
D. Vestibular canals
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
activates posterior canal
A. rolling
B. pitching
C. yaw
transfers sounds waves into perilymph fluid inside scale vestibuli
A. stapes
B. basilar membrane
C. saccule
D. scala tympani
waves in _____ shake tectorial and basilar membranes
A. fluid
B. liquid
C. stapes
D. sound
waves in ________ press hair cells into tectorial membrane, bending cilia, firing receptor cells
A. fluid
B. solids
C. liquids
D. sounds
body balance
A. lateral vestibular nuclei in spinal cord
B. medial/inferior vestibular nuclei to upper spinal cord/cranial nerves
C. superior vestibular nuclei to medial longitudinal fasiculus to CN III, IV, VI
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
three half-moon tubes oriented in the three primary planes (anterior, posterior, lateral)
A. semicircular canals
B. ampulla
C. utricle
D. saccule
activates anterior canal
A. rolling
B. pitching
C. yaw
fluid flows around into scale tympani and releases less energy out round window
A. TRUE
B. FALSE
by comparing intensity and timing of neuron firing in each ear, we can determine vertical location of sound source
A. TRUE
B. FALSE
starts comparing timing and intensity differences and comparing each ear, acoustic brainstem reflex
A. cochlear nucleus
B. superior olive
C. medial geniculate
D. auditory cortex
(basilar membrane) wide, thin, floppy, close to apex
A. low frequency
B. high frequency
located in temporal lobe, maintains tonotopic organization
A. A1
B. heschl’s gyrus
C. vestibular
D. saccule
designed to detect and transduce head rotation and angular acceleration
A. semicircular canals
B. ampulla
C. otolith organs
D. vestibular hair cells
activates lateral canal
A. rolling
B. pitching
C. yaw
perceptual processing of signal
A. cochlear nucleus
B. superior olive
C. medial geniculate
D. auditory cortex
complex sound waves are decomposed into individual frequencies in cochlea
A. TRUE
B. FALSE
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
each semicircular canal is filled with fluid that causes gel-like cupola to shift
A. TRUE
B. FALSE
utricle and saccule are otolith organs
A. TRUE
B. FALSE
detect linear acceleration in vertical (saccule) and horizontal (utricle) planes
A. semicircular canals
B. otolith organs
C. vestibular hair cells
D. ampulla
movement of otoliths, creates a shear force in the gel matrix
A. saccule
B. otoconia
C. utricle
D. cupula
integration with vision (LGN) and other senses
A. cochlear nucleus
B. superior olive
C. medial geniculate
D. auditory cortex
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