Ears 1
Structure and functions of the ears
Structures of the ears External ear Middle ear Also known as the tympanic cavity Inner ear Also known as the labyrinth 3
Understanding the functions of the ear External ear Pinna External auditory canal Contains cerumen Tympanic membrane
Understanding the functions of the ear Middle ear Ossicles Hammer or malleus Anvil or incus Stirrup or stapes Eustachian tube
Understanding the functions of the ear Inner ear Cochlea Semicircular canals
Ears Name the structures… Review 7
Understanding the functions of the ear Pathway of hearing Trace the pathway of hearing. Discuss the process of hearing. What are decibels?
Review the pathway of hearing Understanding the functions of the ear What is occurring at each structure? Review the pathway of hearing
Healthy Hearing How do you protect your hearing? What is the relevance to healthy hearing?
Understanding the functions of the ear Sound Activity What is a sound byte? Short bit of sound or clip from a longer recording.
Disorders of the ear
Disorders of the ear What instruments are used to examine the ear? What specialist studies the ears, nose, and throat?
Disorders of the ear External otitis Discuss what you see in this picture? (Besides a Q-tip!) What causes external otitis? How can it be prevented?
Normal tympanic membrane Disorders of the ear Otitis media What is otitis media? Who is most at risk of having otitis media? Why? What are the treatment options? http://www.medicinenet.com/anatomy_of_an_ear_infection_pictures_slideshow/article.htm Normal tympanic membrane Otitis media Myringotomy
Disorders of the ear Otosclerosis What is it? Oto- sclerosis What causes it? Why is a stapedectomy useful in treating otosclerosis?
Disorders of the ear Meniere’s disease What are the symptoms of Meniere’s disease? What causes these symptoms? How is it treated?
Disorders of the ear Tinnitus Tinnitus is a symptom, not a disorder. What is tinnitus? Explain this statement: Tinnitus is a symptom, not a disorder.
Disorders of the ear Presbycusis What is presbycusis? Who is most likely to develop presbycusis? What is the difference between conductive hearing loss and sensory hearing loss? How can they be treated?
Testing for hearing loss http://www.youtube.com/watch?v=7BQFKnP-7Qg Rinne test Weber test Compare these two tests. How are they diagnostic?
Structure, Functions and Disorders of the Ear The End