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A completely perforated eardrum, showing the handle of the malleus (hammer bone). A perforated eardrum ( tympanic membrane perforation) is a prick in the eardrum. It can be caused by infection ( otitis media ), trauma, overpressure (loud noise ), inappropriate ear clearing, and changes in middle ear pressure. An otoscope can be used to view the ...
Hyperacusis is an increased sensitivity to sound and a low tolerance for environmental noise. Definitions of hyperacusis can vary significantly; it often revolves around damage to or dysfunction of the stapes bone, stapedius muscle or tensor tympani ( eardrum ). It is often categorized into four subtypes: loudness, pain (also called noxacusis ...
Tympanic membrane retraction describes a condition in which a part of the eardrum lies deeper within the ear than its normal position. The eardrum comprises two parts: the pars tensa, which is the main part of the eardrum, and the pars flaccida, which is a smaller part of the eardrum located above the pars tensa. Either or both of these parts ...
As the Supreme Court explained in an 1847 decision, the police power “is not susceptible of an exact limitation.”. As “new and vicious indulgences” emerged, they required “restraints ...
Justice Elena Kagan on Thursday became the first member of the U.S. Supreme Court to call publicly for beefing up its new ethics code by adding a way to enforce it. In her first public remarks ...
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August 6, 2024 at 12:43 PM. There are small signs of improvement in the mental health of U.S. teenagers, a government survey released Tuesday said, but the share of students — particularly girls ...
e. In the anatomy of humans and various other tetrapods, the eardrum, also called the tympanic membrane or myringa, is a thin, cone-shaped membrane that separates the external ear from the middle ear. Its function is to transmit sound from the air to the ossicles inside the middle ear, and thence to the oval window in the fluid-filled cochlea.