Medical Quiz

Auditory and Vestibular Neurology Quiz


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transfers sounds waves into perilymph fluid inside scale vestibuli

A. stapes

B. basilar membrane

C. saccule

D. scala tympani


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


each frequency with energy will destroy waves in basilar membrane causing hair cells in region to fire

A. TRUE

B. FALSE


combined firing across cochlea represents

A. complex sound waves

B. tonotopic organization

C. auditory pathway

D. NSCLIMA


eyes track an object while the head is moving

A. LVN-spinal cord

B. M/IVN-upper spinal cord/cranial nerves

C. SVN-MLF-CN VIII,IV,VI


fluid flows around into scale tympani and releases less energy out round window

A. TRUE

B. FALSE


activates posterior canal

A. rolling

B. pitching

C. yaw


starts processing timing and intensity difference for localization of sound

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


utricle and saccule are otolith organs

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


our ears are offset horizontally making up/down localization less difficult

A. TRUE

B. FALSE


waves in _____ shake tectorial and basilar membranes

A. fluid

B. liquid

C. stapes

D. sound


activates anterior canal

A. rolling

B. pitching

C. yaw


dilated portion at the end of each semicircular canal

A. ampulla

B. utricle

C. saccule

D. vestibular


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


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


waves in ________ press hair cells into tectorial membrane, bending cilia, firing receptor cells

A. fluid

B. solids

C. liquids

D. sounds


sense head rotation and motion

A. VOR

B. saccule

C. utricle

D. Vestibular canals


(basilar membrane) wide, thin, floppy, close to apex

A. low frequency

B. high frequency


by comparing intensity and timing of neuron firing in each ear, we can determine vertical location of sound source

A. TRUE

B. FALSE


activates lateral canal

A. rolling

B. pitching

C. yaw


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


located in temporal lobe, maintains tonotopic organization

A. A1

B. heschl’s gyrus

C. vestibular

D. saccule




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