Card 4 / 11: The vestibular system can be stimulated or irritated by an infection of the inner ear or by a tumor (arrow) pressing on the vestibulocochlear nerve. Which of the following would NOT occur?
A.)
Decreased auditory acuity.
B.)
Vertigo.
C.)
Tinnitis.
D.)
Loss of facial sensation.
E.)
Nausea.
Answer:
D.) Loss of facial sensation.
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Facial sensation, mediated by CN V would not be affected by a tumor compressing CN VIII, unless the tumor is large enough to press on CN V or affect the descending nucleus and tract of V in the medulla.
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Neuroanatomy 08 The Vestibular System
Author:
M.D.Stephen VoronLecturer
University of Utah
USA
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