RT Book, Section
A1 Oghalai, John S.
A1 Brownell, William E.
A2 Lalwani, Anil K.
SR Print(0)
ID 55770441
T1 Chapter 44. Anatomy & Physiology of the Ear
T2 CURRENT Diagnosis & Treatment in Otolaryngology—Head & Neck Surgery, 3e
YR 2012
FD 2012
PB The McGraw-Hill Companies
PP New York, NY
SN 978-0-07-162439-8
LK accessmedicine.mhmedical.com/content.aspx?aid=55770441
RD 2024/04/23
AB Mechanical  events  resulting  from  sound,  gravitational  forces,  and  rotational  acceleration  are  detected  by  the  cochlea  and  vestibular  organs  within  the  inner  ear.  Sound  is  a  mechanical  vibration  (eg,  as  produced  by  a  vibrating  piano  string).  This  vibration  sets  up  small  oscillations  of  air  molecules  that,  in  turn,  cause  adjacent  molecules  to  oscillate  as  the  sound  propagates  away  from  its  source.  Sound  is  called  a  pressure  wave  because  when  the  molecules  of  air  come  closer,  the  pressure  increases  (compression);  as  they  move  further  apart,  the  pressure  decreases  (rarefaction).