Transcript 3.04_Functions_and_disorders_of_the_ear

3.04 Functions and
disorders of the ear
3.04 Understand the functions and
disorders of the sensory system
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3.04 Understand the functions and
disorders of the sensory system
Essential Questions
• What are the functions of the sensory system?
• What are some disorders of the sensory system?
• How are sensory system disorders treated?
• How do you relate the body’s communication to
the sensory system?
3.04 Understand the functions and
disorders of the sensory system
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Understanding the
functions of the ear:
Hearing
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disorders of the sensory system
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Understanding the
functions of the ear
External ear


Pinna
External auditory
canal


Contains cerumen
Tympanic
membrane
3.04 Understand the functions and
disorders of the sensory system
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Understanding the
functions of the ear
Middle ear

Ossicles

Eustachian
tube
3.04 Understand the functions and
disorders of the sensory system
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Understanding the
functions of the ear
Inner ear

Cochlea

Semicircular
canals
3.04 Understand the functions and
disorders of the sensory system
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Understanding the
functions of the ear
Pathway of
hearing



Trace the pathway
of hearing.
Discuss the process
of hearing.
What are decibels?
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disorders of the sensory system
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Understanding
the
functions of
the ear
What is occurring at
each structure?
3.04 Understand the functions and
disorders of the sensory system
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Healthy Hearing
How do you protect your hearing?
What is the relevance to healthy hearing?
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disorders of the sensory system
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Understanding the
functions of the ear
Sound Activity
What is a sound byte?
Short bit of sound or clip from a
longer recording.
3.04 Understand the functions and
disorders of the sensory system
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Disorders of the ear
3.04 Understand the functions and
disorders of the sensory system
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Disorders of the ear
3.04 Understand the functions and
disorders of the sensory system
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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?
3.04 Understand the functions and
disorders of the sensory system
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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?
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disorders of the sensory system
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Disorders of the ear
Otosclerosis

What is it?
 Oto- sclerosis

What causes it?

Why is a stapedectomy
useful in treating
otosclerosis?
3.04 Understand the functions and
disorders of the sensory system
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Disorders of the ear
Meniere’s disease

What are the
symptoms of
Meniere’s disease?

What causes these
symptoms?

How is it treated?
3.04 Understand the functions and
disorders of the sensory system
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Disorders of the ear
Tinnitus

What is tinnitus?
Explain this statement:
Tinnitus is a symptom,
not a disorder.
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disorders of the sensory system
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Disorders of the ear
Presbycusis

What is
presbycusis?

Who is most likely
to develop
presbycusis?
3.04 Understand the functions and
disorders of the sensory system
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Testing for hearing loss
Rinne test
Weber test
Compare these two tests.
How are they diagnostic?
3.04 Understand the functions and
disorders of the sensory system
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3.04 Understand the functions and
disorders of the sensory system
Essential Questions
• What are the functions of the sensory system?
• What are some disorders of the sensory system?
• How are sensory system disorders treated?
• How do you relate the body’s communication to
the sensory system?
3.04 Understand the functions and
disorders of the sensory system
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3.04 Functions and
disorders of the ear
The End
3.04 Understand the functions and
disorders of the sensory system
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