Human Hearing.

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Presentation transcript:

Human Hearing

The Human Ear

Some highlights: Frequency range The audible human hearing range is from 20 Hz to 20 kHz Most people can comfortably hear between 1000Hz to 5500 Hz

The Outer Ear The outer ear gathers sound and channels it into the auditory canal toward the middle ear

The Middle Ear The middle ear consists of the eardrum and three small bones: the hammer, anvil and the stirrup The eardrum vibrates when it encounters sound waves The bones transmit and magnify the vibrations

Middle Ear

The Inner Ear The inner ear contains the cochlea and the auditory nerve Vibrations are transformed into electrical impulses in the cochlea The cochlea sends the impulses through the auditory nerve to the brain

Inner Ear

Infection in the Middle Ear and location of the ear components

DID YOU HEAR THAT????

Your Turn…. MHR Read pg. 408-416 Do pg. 416# 1-15

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