Hearing loss


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Hearing loss

  1. 1. By: David Maximo Period: 4
  2. 2. Nervous System (How Hearing works?) <ul><li>“ Inner Ear: A part called the cochlea has tiny “hairs” that change sounds into signals. The signals travel on the hearing nerve to the brain and the brain interprets the signals as sound which creates the sense of hearing.” </li></ul>
  3. 3. Why can’t neurons be repaired? <ul><li>The scar tissue is permanent and damaged neurons can’t be repaired when an area of the brain, spinal cord, or optic nerves, are filled with neurons-that are not able to communicate well with other neurons that are part of the brain or spinal cord that can’t work very good. </li></ul>
  4. 4. What Are the Risk Factors for Permanent Hearing Loss? <ul><li>“ Aging exposure to sounds over years can damage the cell of your inner ear and makeup may make you more susceptible to ear damage.” </li></ul><ul><li>Loud noises: explosive noises, fireworks, snowmobiling, and motorcycling can cause immediate permanent hearing loss. Listening to loud music, like MP3 players, I-pods can cause lasting hearing loss if you turn the volume up high. </li></ul><ul><li>Certain drugs can damage the inner ear, such as the antibiotic gentamicin. Hearing loss could also happen if you take too much aspirin. </li></ul>
  5. 5. What Can be Done to Prevent Hearing Loss? <ul><li>Avoid loud noises </li></ul><ul><li>Use ear plugs or ear muffs when you go to noisy events like rock concerts, car races, etc. </li></ul><ul><li>Control the volume on your I-pod and other devices that send sound directly into your ear. </li></ul><ul><li>Don’t go above the halfway setting on the volume control. If the person sitting next to you can hear your music, the volume is too loud. </li></ul>
  6. 6. Why Can’t Hearing Loss be Repaired? <ul><li>“ Sensor neural- or “nerve” hearing loss involves damage to the inner ear. It can be caused by aging, prenatal and birth related problems, viral and bacterial infections, genetics, trauma (severe blows to the head), exposure to loud noises, the use of certain drugs, or fluid buildup or a benign tumor in the inner ear. Sensor neural hearing loss usually can’t be repaired surgically. It’s usually corrected with a hearing aid.” </li></ul>
  7. 7. What Are The Most Common Types of Hearing Aids? <ul><li>BTE Hearing Aid “AKA” Behind The Ear Hearing Aid: They are one of the largest hearing aids with the electrical components of the hearing aid resting behind the ear.  </li></ul><ul><li>ITE Hearing Aid “AKA” In The Ear Hearing Aid: The largest of the hearing aid styles, have more power and the ability to have controls on the hearing aid. </li></ul><ul><li>ITC Hearing Aid “AKA” In The Canal Hearing Aid: These are smaller than ITEs and offers fewer manual controls. </li></ul><ul><li>CIC Hearing Aid and it’s referred to ITC: The tiniest hearing aids, hard to remove and insert and do not have manual controls because of their size. </li></ul><ul><li>RITE Hearing Aid “AKA” Receiver In The Ear Hearing Aids: Gained popularity in the last five years because when it’s damaged, it could be replaced at the hearing aid center rather than sending it to the hearing aid manufacturer </li></ul>
  8. 8. What Is The Best Hearing Aid? <ul><li>The Best Hearing Aid are the ones that are chosen and fit for the person who picks them. </li></ul><ul><li>Have a one-on-one with a hearing care professional </li></ul><ul><li>Throughout the hearing aid evaluation, he/she will know which hearing aid is best for you. </li></ul>
  9. 9. Standards <ul><li>9d Students know the functions of the nervous system and the role of neurons in transmitting electrochemical impulses. </li></ul><ul><li>9b Students know how the nervous system mediates communication between different parts of the body and the body’s interactions with the environment. </li></ul>
  10. 10. Websites Sources <ul><li>http://answers.ask.com/Science/Psychology/how_does_the_brain_proc </li></ul><ul><li>http://www.hearinglosseducation.com/Hearing/how-hearing-works.asp </li></ul><ul><li>http://www.eldercareteam.com/public/767.cfm </li></ul><ul><li>http://www.oif.org/site/DocServer/How_to_Prevent_Hearing_Loss.pdf?docID=7209 </li></ul><ul><li>http://www.mayoclinic.com/health/hearing-loss/DS00172/DSECTION=risk-factors </li></ul>
  11. 11. Pictures Sources <ul><li>http://www.tptworkwear.co.za/hearingprotection.asp </li></ul><ul><li>http://kezi.com/page/185336 </li></ul><ul><li>http://www.clarityhearing.com/hearing_loss_baltimore_hearing_loss_ellicott_city_county_md.php </li></ul><ul><li>http://www.mthoodhearing.com/whatis.php </li></ul><ul><li>http://crowleys-classroom.wikispaces.com/Lorenzo%27s+Oil+page </li></ul>