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How sound travels through the ear Project-Raymond Zamudio (External Ear…
How sound travels through the ear Project-Raymond Zamudio
External Ear
Auricle- Sound waves enter.
External Auditory Canal- carries the sound waves to the tympanic membrane.
Tympanic Membrane- The sound waves that were sent from the canal presents it with vibrations
Middle Ear
Malleus (hammer)- Receives the vibration from tympanic membrane and transmits this to the Incus.
Incus (anvil)- Transmits the vibrations to the Stapes.
Stapes (stirrup)- Transmits the vibrations to the inner ear.
Inner Ear
Oval Window- The vibrations from the stapes enters the Scala Vestibuli along with fluid.
Scala Vestibuli- Conducts the sound vibrations into fluid.
Vestibular Membrane- Separates the Endolymph and Perilymph.
Cochlear Duct- Filled with the Endolymph.
Basiliar Membrane- Vibrates the Organ of Corti from the sound waves.
Organ of Corti- Hears the actual sound.
Tectorial Membrane- Bends hairs of Organ of Corti from the vibrations of the Basiliar Membrane.
Scala Tympani- Allows vibrations to escape the round window.
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Nerve Impulses
Vestibuli Cochlea Nerve
Medulla Oblongata
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