1. 3.04 Sensory functions and disorders of the tongue and skin 3.04 Understand the functions and disorders of the sensory system 1

2. 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?

3. Understanding the functions of the tongue 3.04 Understand the functions and disorders of the sensory system 3

4. Understanding the functions of the tongue Gustatory receptors (taste buds) Gustatory receptors (taste buds) 3.04 Understand the functions and disorders of the sensory system 4

5. Taste Trivia Did you know??? An adult has on average 9,000 taste buds (a child even 10,000) An adult has on average 9,000 taste buds (a child even 10,000) More buds means the individual perceives more types of taste More buds means the individual perceives more types of taste The spicy foods (like chili peppers) stimulate the pain receptors, not the taste buds The spicy foods (like chili peppers) stimulate the pain receptors, not the taste buds 3.04 Understand the functions and disorders of the sensory system 5

6. 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. Did you know… eating chocolate makes the brain produce natural opiates Produces a sense of well-being Produces a sense of well-being Reduces pain Reduces pain Makes you happy! Makes you happy!

7. 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.

8. 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.

9. 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.

10. Understanding the functions of the tongue Taste Taste 3.04 Understand the functions and disorders of the sensory system 10

11. Sense of Taste What is the relationship between the sense of taste and the sense of smell? 3.04 Understand the functions and disorders of the sensory system 11

12. Understanding the functions of the tongue Taste Activity Do you like all of your taste buds? 3.04 Understand the functions and disorders of the sensory system 12

13. Disorders of the tongue Glossitis Gloss itis Gloss itis What is it? 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. 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. 3.04 Understand the functions and disorders of the sensory system 13

14. Disorders of the tongue 3.04 Understand the functions and disorders of the sensory system 14 Strawberry tongue Strawberry tongue due to scarlet fever How are disorders of the tongue relevant to taste?

15. 3.04 Understand the functions and disorders of the sensory system 15 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?

16. The Skin 3.04 Understand the functions and disorders of the sensory system 16

17. Understanding the sensory functions of the skin Touch Tactile corpuscles (receptors) Tactile corpuscles (receptors) Temperature sensors Temperature sensors Pain receptors Pain receptors  Referred pain  Phantom pain 3.04 Understand the functions and disorders of the sensory system 17

18. Understanding the functions of the skin Touch 3.04 Understand the functions and disorders of the sensory system 18

19. Understanding the functions of the skin Touch Activity Guess what’s in the bag? Shhh… 3.04 Understand the functions and disorders of the sensory system 19

20. 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

21. 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?

22. 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