Introduction: Course objectives

Audiology Practice

How the Ear Works

Hearing Loss

Detecting and Diagnosing Hearing Loss in Children

Intervention for Children with Permanent HL

Case studies

Resources

Credits and Acknowledgements

 

Last updated: 10-sep-10

How the Ear Works

The ear is made up of three parts:

Outer (External) Ear

Sounds travel through the external ear or ear canal and cause vibration of the eardrum (tympanic membrane).

Middle Ear

Eardrum movement causes the three middle ear bones (ossicles) to vibrate.
This vibration creates movement of fluid in the inner ear (cochlea).

Inner Ear

The inner ear, or cochlea, sends nerve impulses to the brain. Once the brain receives the message, we have a sensation of hearing.

How the ear works

back | next

Center on Human Development and Disability, UW LEND, University of Washington,
Box 357920, Seattle, WA 98195-7920 lend@uw.edu