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tympanic membrane

3.71  tympanic membrane; eardrum; drum membrane. Conical shaped translucent membrane that separates the external acoustic meatus from the middle ear cavity. The handle of the malleus is attached to the tympanic membrane medially.

Annotation            The amplitude of displacement of the tympanic membrane for a 1000 Hz tone at the threshold of audibility is about 10 nm. For low-frequency tones at the threshold of feeling the amplitude of displacement is about 0.1 mm.

Related Articles:
  • Standards Terms: auditory ossicles
  • Standards Terms: ossicles
  • Standards Terms: auditory tube
  • Standards Terms: Eustachian tube
  • Standards Terms: external acoustic meatus
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Related Terms:
  • Standards Terms: external acoustic meatus
  • Standards Terms: threshold of audibility
  • Standards Terms: threshold of feeling
  • Standards Terms: drum membrane
  • Standards Terms: displacement
  • Standards Terms: middle ear
  • Standards Terms: amplitude
  • Standards Terms: eardrum
  • Standards Terms: malleus
  • Standards Terms: tone

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