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3.04 Sensory functions
and disorders of the
tongue and skin
3.04 Understand the functions and
disorders of the sensory system 1
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3.04 Understand the functions and
disorders of the sensory system
3.04 Understand the functions and
disorders of the sensory system 2
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?
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Understanding the
functions of the tongue
3.04 Understand the functions and
disorders of the sensory system 3
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Understanding the
functions of the tongue
Gustatory receptors
(taste buds)
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disorders of the sensory system 4
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Taste Trivia
Did you know???
An adult has on average 9,000 taste buds (a child even 10,000)
More buds means the individual perceives more types of taste
The spicy foods (like chili peppers) stimulate the pain receptors, not the taste buds
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disorders of the sensory system 5
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Structures of the tongue: taste buds
3.04 Understand the functions and
disorders of the sensory system 6
Agreeable or disagreeable?
Identify the taste bud.
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Structures of the tongue: taste buds
3.04 Understand the functions and
disorders of the sensory system 7
Agreeable or disagreeable?
Identify the taste bud.
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Structures of the tongue: taste buds
3.04 Understand the functions and
disorders of the sensory system 8
Agreeable or disagreeable?
Identify the taste bud.
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Structures of the tongue: taste buds
3.04 Understand the functions and
disorders of the sensory system 9
Agreeable or disagreeable?
Identify the taste bud.
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Understanding the
functions of the tongue
Taste
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disorders of the sensory system 10
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Sense of Taste
What is the relationship between the
sense of taste and the sense of smell?
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Understanding the
functions of the tongue
Taste Activity
Do you like all of your taste buds?
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disorders of the sensory system 12
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Disorders of the tongue
Glossitis
Gloss itis
What is it?
What are the benefits of good oral hygiene in treatment
and prevention of glossitis? It reduces inflammation. Avoid
irritants such as hot or spicy foods, alcohol or tobacco.
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Disorders of the tongue
3.04 Understand the functions and
disorders of the sensory system 14
Strawberry
tongue due to
scarlet fever
How are disorders of the tongue relevant to taste?
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3.04 Understand the functions and
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Disorders of the tongue:
Thrush
What is it? A yeast infection that causes white
patches in your mouth.
Who most likely gets it? People with
weakened immune systems, using antibiotics or
taking cancer drugs or corticosteroids.
How is it treated? Antifungal medications
How are disorders of the tongue relevant to health?
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The Skin
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Understanding the sensory
functions of the skin
Touch
Tactile corpuscles (receptors)
Temperature sensors
Pain receptors Referred pain
Phantom pain
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disorders of the sensory system 17
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Understanding the
functions of the skin
Touch
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disorders of the sensory system 18
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Understanding the
functions of the skin
Touch Activity
Guess what’s in the bag?
Shhh…
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Disorders of the skin
3.04 Understand the functions and
disorders of the sensory system 20
How do you think the disorders of the skin
pictured impact the sensory function of the skin?
Burns Dermatitis
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3.04 Understand the functions and
disorders of the sensory system
3.04 Understand the functions and
disorders of the sensory system 21
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?
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3.04 Sensory functions and
disorders of the tongue and skin
The End
3.04 Understand the functions and
disorders of the sensory system 22