| || |
Introduction to Deafness/Hearing Loss
The hearing mechanism consists of 3 parts—outer, middle and inner ear. The outer ear is made up of the external ear and the ear canal. It ends with the tympanic membrane or ear drum. The middle ear is made up of the ear drum and an air filled cavity which contains the 3 tiniest bones in your body, the ossicles. The inner ear is made up of the semicircular canals (that deal with balance), the cochlea (a shell shaped object the size of a pea that perceives sounds at different pitches) and then the auditory nerve that leads to the brain where sound is perceived.
Hearing impairments can take on different forms – either a partial loss of hearing or a total loss of hearing referred to as deafness. Hearing loss is categorized as mild, moderate, severe or profound. All have impact upon communication with others. Individuals who are deaf must learn to read lips or learn sign language or cued speech to communicate. Individuals with hearing loss often use technology to compensate. Technology includes hearing aids, FM systems, and cochlear implants. Environmental aids include vibrating alarms, alerting devices, and support dogs.
There are 3 basic types of hearing loss:
Hearing Aids and Cochlear Implants
American Sign Language and Deaf Culture
Do you think you have a hearing loss?
1 "About American Deaf Culture." About American Deaf Culture. Web. 02 July 2015.