Chapter 6-Hearing Disorders

Chapter 6-Hearing Disorders - Chapter 6: Hearing Disorders...

Info iconThis preview shows pages 1–7. Sign up to view the full content.

View Full Document Right Arrow Icon
Chapter 6: Hearing Disorders Amy Mullin
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Sound Pathways Air Conduction: Outer Ear (OE), Middle Ear (ME), and Inner Ear (IE) Bone Conduction: IE only- stimulating the skull
Background image of page 2
Review: Anatomy of Ear
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Tuning Fork Tests 19 th Century Today Examples of tests: placed stem of tuning fork on the mastoid process. Cannot diagnose degree of hearing loss
Background image of page 4
Pure-Tone Audiometry Audiometer Pure tones Frequencies Available: 125, 250, 500, 750 , 1000, 2000, 3000 , 4000, 6000 Threshold of Audibility The level at which a patient can barely detect the signal—usually defined as “at least 50% of the time” By Air Conduction (AC): by using headphones By Bone Conduction (BC): by using a vibrating headband thing to vibrate the mastoid process – Note:
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Pure-Tone Audiometry (cont’d) Units of Measure Frequency: hertz (Hz) Intensity: decibels (dB) Hearing Level (HL)- the minimum volume/intensity that is needed to invoke a threshold response from people with normal
Background image of page 6
Image of page 7
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 03/19/2008 for the course CSD 316k taught by Professor Marquardt during the Fall '07 term at University of Texas at Austin.

Page1 / 24

Chapter 6-Hearing Disorders - Chapter 6: Hearing Disorders...

This preview shows document pages 1 - 7. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online