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Sound, hearing, & the ear for slideshare

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    Sound, hearing, & the ear for slideshare Sound, hearing, & the ear for slideshare Presentation Transcript

    • Inside the Cochlea
      Regions of the basilar membrane respond to different frequencies
      High frequencies near the oval window, low frequencies at the apex
    • Organ of Corti
      Movement of cochlear fluid causes tectorial and basilar membranes to bend
      Outer hair cells are stimulated leading to action potentials in the inner hair cells
    • Auditory Pathways
      Inner hair cells synapse on bipolar cells forming the auditory nerve
      Input from the left ear crosses to the right inferior colliculus
      Medial geniculate nucleus of the thalamus
      Primary auditory cortex of the temporal lobe