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Understanding Middle Ear: Anatomy, Physiology & Disorders

Explore the intricate anatomy, physiology, and common disorders of the middle ear, including Eustachian tube, ossicles, mastoid, and tympanic cavity. Learn about impedance matching, middle ear muscles, and various otologic conditions like otitis media, cholesteatoma, and otosclerosis.

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Understanding Middle Ear: Anatomy, Physiology & Disorders

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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

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