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How Does Normal Hearing Work

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http://budurl.com/harpertempewebsite A normal hearing person hears by means of three portions of the ear along with the auditory pathways of the brain working in conjunction.

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How Does Normal Hearing Work

  1. 1. houg How Does Normal Hearing Work? A normal hearing person hears by means of three portions of the ear along with the auditory pathways of the brain working in conjunction. We divide the earanatomically into 3 portions: the outer ear, the middleear, and the inner ear. The brain passageway of sound islocated along the central auditory pathways. When thesecomponents work in conjunction, normal clear sound isheard.The outer ear includes the outer portion of the ear visibleto others and the outer ear canal. This portion of the earpicks up and funnels sound into the “s”-shaped outer earcanal to the ear drum.Harper Hearing Services Co. (480) 719-3094
  2. 2. The middle ear includes the ear drum and the air-filledspace behind it containing the small ear bones orossicles, commonly called the hammer, anvil, and stirrupdue to their shape. The footplate of the stirrup thenconducts sound vibration to the inner ear.The inner ear is both a center of hearing and of balance.The balance portion is made up of the semicircular canalsand organs of balance (saccule and utricle). The hearingportion includes the cochlea and the hearing nerve. Thecochlea is often called the organ of hearing. It is a conchshell shaped bone containing the organ of Corti whichhouses the sensory cells of the ear. When these sensorycells are activated by sound signals, chemicaltransmitters are released and sent via the hearing nerveto the brain.The central auditory pathways of the brain then processthe sound for localization, noise reduction, and speechHarper Hearing Services Co. (480) 719-3094
  3. 3. understanding. It is these brain centers that actually“hear” and “listen” to the sound. The ear is onlyresponsible for faithful transmitting the sound to thesecenters. Damage at this level is much more difficult totreat than at the ear level.Damaged, disorder, or distortion of any part of thesecomponents will result in some form of hearing loss thatwill require a specific hearing treatment. Contact ahearing healthcare professional today if you suspect youor a family member no longer have normal hearing or areat risk of hearing damage. For More Information Call Us at (480) 719-3094 Or Visit www.hearing-aids-tempe-az.com, YouTube, Facebook and TwitterHarper Hearing Services Co. (480) 719-3094

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