Audición

El oído se divide en tres regiones: oído externo, oído medio y oído interno.

Cuando las ondas sonoras penetran el canal auditivo, causan la vibración del tímpano. La vibración mueve los tres huesos del oído medio, llamados huesecillos. Los huesecillos también se conocen como martillo, yunque y estribo. Estos huesecillos transfieren y amplifican las ondas sonoras hacia la ventana oval, ubicada detrás del estribo.

Cuando la ventana oval vibra, mueve un fluido a través de la membrana dentro de la cóclea. El fluido hace que la membrana se mueva. Unas células capilares especializadas traducen este movimiento en impulsos nerviosos, los cuales se envían al cerebro a través del nervio vestibulococlear. El cerebro interpreta esos impulsos como sonidos.

Version Info

  • Last Reviewed on 10/05/2008
  • Luc Jasmin, MD, PhD, Gene Therapeutics Research Institute, Cedars-Sinai Medical Center, Los Angeles CA. Review provided by VeriMed Healthcare Network.

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This page was last updated: July 1, 2013

         
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