MadSci Network: Anatomy

Re: Any new information on eardrum fluttering

Date: Sun Apr 26 13:22:46 2009
Posted By: Sam Reyes, Otolaryngolgogy Resident
Area of science: Anatomy
ID: 1240497890.An

I agree with the previous answer that it is most likely that you are
hearing sounds conducted from other parts of your body.  If you are
clenching your jaw you may be hearing movements in your temporomandibular
joint. One other very unlikely possibility is that you are able to
voluntarily contract your tensor tympani or stapedius muscles.  These are
muscles attached to bones in your middle ear which dampen sound being
transmitted to your inner ear.  It should be possible to record changes
caused by these twitches using a device called an impedance audiometer
which many audiologists and some pediatricians have.    

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