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Hearing Loss

Video Tour of the Ear

  • Watch this short video tour of the ear and read the description below to understand how the ear works.

    Stage 1 – The outer ear
    The outer ear collects sound waves and directs them into the ear canal. Here sounds are amplified by the canal’s funnel-like shape and channeled on to the eardrum.

    Stage 2 – The middle ear
    On reaching the eardrum, the sound waves cause the eardrum to vibrate, transmitting the sound to three tiny bones located in the middle ear.

    These bones are commonly referred to as the hammer, anvil, and stirrup and they connect the eardrum to a membrane between the middle and inner ear, known as the “oval window”.

    The movement of the oval window transmits the pressure waves for sound in to the inner ear.

    Stage 3 – The inner ear
    The inner ear is fluid-filled and consists of the spiral-shaped “cochlea”.

    The passageways of the cochlea are lined with about 20,000 microscopic hair cells that convert sound vibrations into nerve impulses. These impulses are then sent to the brain which interprets them as meaningful sounds.