A&P of Vestibular System Part 2 Exam Questions and Answers Fully Solved Graded A+
T/F The oblique extraocular muscles may fatigue during prolonged episodes of nystagmus, resulting in a
more unidirectional nystagmus - AnswersT
Oblique muscles are smaller and may fatigue, causing less torsional nystagmus to be observed
You notice a patient's eyes will not keep up with the speed of their head movement. You document this
finding as: - AnswersOscillopsia
What part of the vestibular anatomy ultimately create the neural firing rate within each ear? -
AnswersHair cells firing and polarizing cause the nerve potential to increase.
T/F In cases of centrally mediated nystagmus, nystagmus is typically unidirectional or direction fixed. -
AnswersF: This is true of peripherally mediated nystagmus.
The phenomenon that nystagmus increases with the gaze in the direction of the fast phase of nystagmus
is called what? - AnswersAlexander's Law
Larger frequency and amplitude of nystagmus is typically seen
In a hypo functioning ear, the eyes will beat (toward/away) from that ear. - AnswersAway, toward the
more excitable ear
T/F: CNS nystagmus may be direction changing or direction fixed - AnswersT
It is recommended that in your bedside evaluation, you first examine eye movements with what 2 tests
to help distinguish between central and peripheral causes of nystagmus - AnswersSpontaneous
nystagmus and gaze evoked nystagmus
Note changes in amplitude/velocity as explained by Alexander's law if peripherally mediated
CNS nystagmus is typically (fatiguing/non-fatiguing) - AnswersNon-fatiguing
T/F You will see direction changing nystagmus with Congenital nystagmus - AnswersTrue
Congenital vs. Brainstem infarct nystagmus: nystagmus is unpredictable, direction changing, and without
a clear pattern. - AnswersBrainstem infarct
T/F Vestibular therapy is more effective when incorporating dual task exercise. - AnswersT
T/F The oblique extraocular muscles may fatigue during prolonged episodes of nystagmus, resulting in a
more unidirectional nystagmus - AnswersT
Oblique muscles are smaller and may fatigue, causing less torsional nystagmus to be observed
You notice a patient's eyes will not keep up with the speed of their head movement. You document this
finding as: - AnswersOscillopsia
What part of the vestibular anatomy ultimately create the neural firing rate within each ear? -
AnswersHair cells firing and polarizing cause the nerve potential to increase.
T/F In cases of centrally mediated nystagmus, nystagmus is typically unidirectional or direction fixed. -
AnswersF: This is true of peripherally mediated nystagmus.
The phenomenon that nystagmus increases with the gaze in the direction of the fast phase of nystagmus
is called what? - AnswersAlexander's Law
Larger frequency and amplitude of nystagmus is typically seen
In a hypo functioning ear, the eyes will beat (toward/away) from that ear. - AnswersAway, toward the
more excitable ear
T/F: CNS nystagmus may be direction changing or direction fixed - AnswersT
It is recommended that in your bedside evaluation, you first examine eye movements with what 2 tests
to help distinguish between central and peripheral causes of nystagmus - AnswersSpontaneous
nystagmus and gaze evoked nystagmus
Note changes in amplitude/velocity as explained by Alexander's law if peripherally mediated
CNS nystagmus is typically (fatiguing/non-fatiguing) - AnswersNon-fatiguing
T/F You will see direction changing nystagmus with Congenital nystagmus - AnswersTrue
Congenital vs. Brainstem infarct nystagmus: nystagmus is unpredictable, direction changing, and without
a clear pattern. - AnswersBrainstem infarct
T/F Vestibular therapy is more effective when incorporating dual task exercise. - AnswersT
