RT Book, Section
A1 Ropper, Allan H.
A1 Samuels, Martin A.
A1 Klein, Joshua P.
A1 Prasad, Sashank
SR Print(0)
ID 1162591325
T1 Deafness, Dizziness, and Disorders of Equilibrium
T2 Adams and Victor's Principles of Neurology, 11e
YR 2019
FD 2019
PB McGraw-Hill Education
PP New York, NY
SN 9780071842617
LK neurology.mhmedical.com/content.aspx?aid=1162591325
RD 2024/04/18
AB Sounds  alert  us  to  danger;  spoken  words  are  the  universal  means  of  communication;  music  is  one  of  our  most  exalted  aesthetic  pleasures.  The  loss  of  hearing  excludes  the  individual  from  many  important  external  stimuli,  and  adjustment  to  this  deprivation  imposes  profound  challenge.  Vestibular  function  ensures  one’s  ability  to  stand  steadily,  stabilize  eye  position  during  head  movement,  and  move  about  gracefully.  Hence,  an  understanding  of  the  functions  of  the  eighth  cranial  nerves  and  their  derangements  by  disease  is  as  much  the  concern  of  the  neurologist  as  the  otologist.  Generally,  the  association  of  vertigo  and  deafness  signifies  a  disease  of  the  end  organs  for  hearing  and  vestibular  function,  or  of  the  eighth  nerve.  The  precise  locus  of  the  disease  is  determined  by  tests  of  labyrinthine  and  auditory  function,  described  further  on,  and  by  findings  on  neurologic  examination  and  imaging  studies  that  implicate  the  primary  and  secondary  connections  of  the  eighth  cranial  nerve.