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Middle Ear - PowerPoint PPT Presentation

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Middle Ear
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Presentation Transcript

  1. Middle Ear • Anatomy • Physiology • Disorders

  2. Anatomy • The big picture • Eustachian tube • Mastoid • Tympanic cavity • Ossicles

  3. The big picture • Size and shape

  4. Eustachian Tube • Anatomy • Function • Differences between adults and children

  5. Mastoid • description • aditus and antrum • clinical implications

  6. Tympanic cavity • Description • Oval window, round window & promontory • VIIth Nerve, chorda tympani

  7. Ossicles • Description

  8. Physiology • Impedance Matching • Areal advantage • Lever advantage

  9. Middle Ear Muscles • tensor tympani • stapedius • purpose

  10. Disorders • Suppurative Otitis Media • Description • Treatment • Audiometric findings

  11. Disorders • Ossicular Discontinuity • Description • Treatment • Audiometric findings

  12. Disorders • Cholesteatoma • Description • Treatment • Audiometric findings

  13. Disorders • Serous Effusion of the Middle Ear (Serous Otitis Media) • Description • Treatment (see next page) • Audiometric findings

  14. Disorders • PE Tubes

  15. Disorders • Negative Middle Ear Pressure • Description • Treatment • Audiometric findings

  16. Disorders • Mucous Otitis Media • Description • Treatment • Audiometric findings

  17. Disorders • Otosclerosis • Description • Treatment • Audiometric findings

  18. Summary