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| Image is downloaded from http://www.ramsayhealth.co.uk/ |
Definition and Understanding of Eardrum or Tympanum or Tympanic Membranes is a thin membrane stretching across the aperture between skull bones at the surface of the head (most anurans and turtles) or within an external meatus (most reptiles, birds and mammals). Vibrates, often aperiodically; transmitting external air pressure changes to ear ossicles of middle ear cavity.
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