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Updated: 3/5/2020
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Storyboard Text

  • A knight was walking in the woods when all of a sudden a sound wave entered his ear
  • Stapes
  • Now let's see how the sound wave traveled through this knight's ear.
  • First it enters the canal and reaches the tympanic membrane here.
  • Malleus
  • Movement of the membrane causes displacement of the auditory ossicles which are the malleus, incus, and stapes.
  • Incus
  • Movement at the stapes at the oval window then causes pressure waves in the perilymph of the vestibular duct
  • Cochlea ,the entire snail shape
  • The waves distort the basilar membrane on their wave to the round window of the tympanic duct.
  • Basilar Membrane
  • Cochlear Branch of Crnial Nerve VIII
  • Vibrations of the basilar membrane causes vibrations of hair cells against the tectorial membrane.
  • Information about the region and intensity of stimulation is then relayed to the CNS over the cochlear branch of cranial nerve VIII.
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