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Ear Ear PowerPoint Presentation

Ear Ear

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Ear Ear

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Presentation Transcript

  1. Ear Ear

  2. Inside an Ear

  3. Ear Camera

  4. Causes of hearing loss • Disease • Some illnesses affect the ear and can cause hearing loss. • Drugs • Some medicines can damage the ears if they are used for a long time. • Trauma • Foreign objects poked in the ear, sudden changes in air pressure and very loud noises can all damage the ear. • Age • Higher frequencies are harder to hear after the age of 20. People don’t usually notice until they are over 55. • Noise • Hearing loud noises (over 85dB) for a long time causes hearing loss.

  5. The Ear Drum (tympanic membrane) Normal Eardrum Burst (perforated) eardrum

  6. Hairy Ears Normal hairs Damaged hairs Rows of hair cells

  7. Which Platform?