Ear disorders
medical conditions

Ear disorders

Explore the available health information, treatment context, and integrative evidence for Ear disorders.

Background
  • Ear disorders are characterized by improper function of a person's ear. The ear is important because it sends messages to the brain that allow a person to hear sounds and sense their balance. As a result, patients with ear disorders may be unable to hear sounds properly, or they may feel dizzy.
  • The ear is divided into three parts: the outer, middle, and inner ear. Sound waves enter the outer ear and hit the eardrum. This causes the eardrum to vibrate. Behind the eardrum, in the middle ear, are three tiny bones: the malleus, incus, and stapes. When the eardrum vibrates, it signals these bones to transmit the vibrations to the hearing organ, called the cochlea, in the inner ear. Inside the cochlea, there are thousands of hair-like nerve endings, called cilia. When the cochlea vibrates, it causes the tiny cilia to move. The auditory nerves translate the vibrations and send them to the brain, where they are interpreted as sound.
  • The middle ear is normally filled with air. It is connected to the back of the nose by the Eustachian tube. This tube is normally closed. However, sometimes (e.g. when a person yawns or swallows) it opens to let air into the middle ear and drain out any fluid. These tubes equalize pressure on either side of the middle ear.
  • If any part of the ear is damaged, infected, or not properly developed, it may result in an ear disorder. Some of the most common types of ear disorders include ear infections, glue ear, hearing loss and deafness, Meniere's disease, phonological disorders, and tinnitus (ringing in the ears).
References
  1. American Academy of Otolaryngology-Head and Neck Surgery (AAO-HNS). . Accessed March 23, 2009.
  2. American Academy of Pediatrics. . Accessed March 23, 2009.
  3. Blakley BW, Blakley JE. Smoking and middle ear disease: are they related? A review article. Otolaryngol Head Neck Surg. 1995 Mar;112(3):441-6.
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  4. Browning G. Evidence-based advice for glue ear. Practitioner. 2003 Aug;247(1649):626-7, 630-1, 634-5.
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  5. Ilicali OC, Keles N, Deqer K, et al. Relationship of passive cigarette smoking to otitis media. Arch Otolaryngol Head Neck Surg. 1999 Jul;125(7):758-62.
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  6. National Institute on Deafness and Other Communication Disorders. . Accessed March 23, 2009.
  7. Natural Standard: The Authority on Integrative Medicine. . Copyright © 2009. Accessed March 23, 2009.
  8. [No authors listed]. Grommets for glue ear. Br J Perioper Nurs. 2005 Sep;15(9):352-3.
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  9. Noble W, Tyler R. Physiology and phenomenology of tinnitus: Implications for treatment. Int J Audiol. 2007 Oct;46(10):569-74.
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  10. Seydel C, Reisshauer A, Haupt H, et al. [The role of stress in the pathogenesis of tinnitus and in the ability to cope with it] [Article in German] HNO. 2006 Sep;54(9):709-14.
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