1. Ewald is best known for his research on the response of the semi-circular
canals. Ewald's THIRD Law is best described by which of the following
vestibular principles?*
3 points
a. Ampullofugal/utriculofugal endolymphatic flow produces a stronger neural
response (excitation) than ampullopetal/utriculopetal flow in the horizontal
canal.
b. Ampullofugal/utriculofugal endolymphatic flow produces a stronger neural
response (excitation) than ampullopetal/utriculopetal in the vertical canals.
c. Stimulation of a semi-circular canal generates eyes movements in the
plane of the canal.
d. Stimulation of a semi-circular canal generates eyes movements opposite
of the plane of the canal.
e. All of the above represent Ewald's First Law - correct answers✅✅b
ampulo - correct answers✅✅movement away from the ampulla
ampulopetal - correct answers✅✅toward the ampula
ewalds law - correct answers✅✅eye and head movements always occur
in the plane of the canal being stimulated
eye measurements are in the direction of endolymph flow
The vestibular system provides information about two types of acceleration:
(1) angular and linear. Which of the following statements most accurately
correlates the anatomical structures of the peripheral vestibular system to
the physiological function?*
a. The otolith organs transmit information about angular acceleration via the
vestibular spinal tract for balance strategies and the semicircular canals
transmit information about linear acceleration for gaze stabilization.
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b. The semicircular canals transmit information about angular acceleration
via the vestibular ocular reflex for balance strategies and the otoliths
transmit information about linear acceleration for gaze stabilization.
c. The otoliths transmit information about linear acceleration and tilt for
balance and compensatory eye movements while the semicircular canals
transmit information about angular acceleration for gaze stabilization. -
correct answers✅✅c
Which of the following test is highly recommended for the evaluation of
balance in patients with PD regardless of the therapy setting?*
1/1
a. The mini-Balance Evaluation Systems Test (mini-BEST)
b. The Balance Error Scoring System (BESS)
c. The modified Clinical Test of Sensory Interaction in Balance (mCTSIB)
d. The Timed Up and Go (TUG)
e. Computerized Dynamic Posturography (CDP) - correct answers✅✅a
Research has correlated abnormal findings in Parkinson's Disease and which
of the following vestibular diagnostic tests?*
1/1
a. Computerized SOT and VNG
b. VNG and VEMPs
c. VNG and ECoG
d. ECoG and ABR
e. All the above - correct answers✅✅b
Sensory Integration is NOT a reflection of which of the following?*
1/1
a. Perceptual challenges
,vestib questions and Answers A+ Guide
b. Attention
c. Learning differences
d. Intelligence
e. Focus - correct answers✅✅d
Which of the following treatment strategies were recommended to address in
vestibular rehabilitation and was specifically related to facilitating the semi-
circular canals?*
1/1
a. Lying prone over a platform
b. Maintaining quadruped while tracking objects
c. Activities providing constant, sustained head position
d. Maintaining upright balance on an uneven surface with eyes closed
e. Spinning in a net hammock - correct answers✅✅e
otoliths - correct answers✅✅small crystals in the fluid-filled vestibular
sacs of the inner ear that, when shifted by gravity, stimulate nerve cells that
inform the brain of the position of the head
Which of the following terms best describes physical findings that do not
have a direct anatomical cause or explanation and are distinct from findings
with known pathology?*
1/1
a. Organic
b. Aphysiological
c. Malingering
d. Psychological overlay
e. All the above are applicable - correct answers✅✅b
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The vestibular afferents are sent via the eighth cranial nerve and are
processed in the vestibular nucleus in the ___________________, which is
known as the _________________ processor for vestibular afferents while the
____________________ is known as the adaptive processor of vestibular
information.*
3/3
a. thalamus; primary; brainstem
b. brainstem; primary; cerebellum
c. brainstem; primary; thalamus
d. cerebellum; primary; brainstem
e. brainstem; secondary; cerebellum - correct answers✅✅b
During head movement, the cupula bends (deflects), which initiates the
transduction process by activating the underlying hair cells and creating an
action potential that is transmitted along CN VIII. These first order neurons
result from an array of stereocilia. When the stereocilia bend toward the -
kinocilium (or tallest hair cilium), it causes _____________________ on that side,
whereas bending of stereocilia away from the kinocilium causes
___________________.*
3/3
a. depolarization (excitation); hyperpolarization (inhibition)
b. depolarization (inhibition); hyperpolarization (excitation)
c. hyperpolarization (inhibition); depolarization (excitation)
d. excitation (a decreased firing rate); inhibition (an increased firing rate)
e. inhibition (a decreased firing rate); excitation (an increased firing rate) -
correct answers✅✅a
Which of the following inner ear structures has the same specific gravity of
the endolymphatic fluid, resulting in responses to head rotation but not
gravitational forces.*