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Portable Network Graphic  |  1996-08-29  |  10KB  |  258x337  |  8-bit (62 colors)
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OCR: SSICLES HE OSSICL LES are three tiny bones inside your middle ear, called the hammer, anvil and stirrup Sound vibrations picked up by the eardrum force the hammer (to which it is fixed to vibrate The anvil links the hammer to the stirrup, which in contact with an opening to the inner ear called the oval window. the hammer moves, it moves the anvil and stirrup which passes on vibrations the inner ear Tw small muscles attached to your ossicles vary the amount sound passed on protecting your ear against loud noises tinv ossicle amoun