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    Anatomy of the Ear - PowerPoint

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    15 PowerPoint slides consisting of mostly pictures
    Discuss the anatomy/physiology of the ear (in speaker notes)
    Discuss the structures responsible for maintenance of rotational and gravitational equilibrium (in speaker notes)

    Required Readings
    Ebrary bookshelf (folder): http://site.ebrary.com/lib/tourou/viewFolder.action?sharedKey=DKSFJONSEEDWBRRYAZOBDBDMKFLLPYHR&userName=trmurray

    Bobick, J and Balaban, N. "Sensory System," and "Endocrine System" Handy Anatomy Answer Book. Visible Ink Press. MI, USA. 2008. eISBN: 9781578592326

    Brooks, Arthur. "Endocrine System." Systems of Our Body. Global Media. Delhi, India. 2007. eISBN: 9788189940829

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    Solution Preview

    Please download the powerpoint in the attachment to see the response. Thank you.

    Slide 1
    Introduction to Anatomy and Physiology of the Ear
    The ear is the organ of hearing.
    Auditory System: Three components
    Outer ear
    Middle ear
    Inner ear

    Worked together to transfer sounds from the environment to the brain.

    Slide 2

    How Sounds are Collected?

    The visible part of the outer ear collected sounds and directed it through the outer ear canal
    The sound travel into the middle ear making the eardrum vibrates; this cause a series of three tiny bones ( the hammer, the anvil, and the stirrup) in the middle ear to to vibrate.
    The vibration is transferred to the snail-shaped ccochlear in the inner ear
    The cochlear has sensitive hair which trigger the generation of nerve signals sent to the brain

    Slide 3

    How do we hear?

    -Outer ear collect sound waves that travel down the external auditory canal and strike the eardrum (tympanic membrane).
    -The eardrum vibrates and the vibrations are sent to the three tiny bones in the middle ear called the ossicles.
    -The ossicles amplify the sound and send the sound waves to the inner ear and into the fluid filled hearing organs called the cochlea.
    - Sound waves that reach the inner ear are converted into electrical impulses and the auditory nerve sends it to the brain.
    - The brain then translates these electrical impulses as sound.

    Slide 4

    Outer Ear
    Outer ear is composed of three parts: - ear canal
    External auditory canal or tube - the tube that connects the outer ear to the middle ear

    Pinna or auricle
    -The pinna is the visible part of the ear where sound is collected
    -Sounds is directed to the outer ear canal

    -tympanic membrane - also called eardrum. It divides the external ear from the ...

    Solution Summary

    The ear provides us with a remarkable range of hearing. The ear is divided into three regions, the inner ear, the middle ear, and the outer ear. The outer and middle ear are responsible for hearing, while the inner ear regulate the sense of equilibrium and balance.