2. 2.08 Understand the functions and
disorders of the digestive system
Essential questions
 What are the functions of the digestive system?
 How do the functions of chemical and physical digestion
interrelate?
 What are the common disorders of the digestive system?
 How are disorders of the digestive system treated?
 How do you relate the body’s use of nutrients to the
digestive system?
2.08 Understand the functions and disorders of
the digestive system 2

3. Understand the functions of the
digestive system
2.08 Understand the functions and disorders of
the digestive system 3

4. Functions of the digestive system
Mouth (buccal / oral cavity)
What digestive system functions occur in the mouth?
2.08 Understand the functions and disorders of
the digestive system 4

5. Functions of the digestive system
Tongue
What is the
digestive system
function of the
tongue?
2.08 Understand the functions and disorders of
the digestive system 5

6. Functions of the digestive system
Teeth
Mastication
2.08 Understand the functions and disorders of
the digestive system 6

7. Functions of the digestive system
Salivary
glands
2.08 Understand the functions and disorders of
the digestive system 7

8. Functions of the digestive system
 Palate
 Uvula
2.08 Understand the functions and disorders of
the digestive system 8

9. Functions of the digestive system
Pharynx
 What does the
pharynx do?
2.08 Understand the functions and disorders of
the digestive system 9

10. Functions of the digestive system
Esophagus
 What does the
esophagus do?
2.08 Understand the functions and disorders of
the digestive system 10

11. Functions of the digestive system
Stomach
2.08 Understand the functions and disorders of
the digestive system 11

12. Functions of the digestive system
Gastric juices
 Enteroendocrine glands
 Parietal cells
 Chief type cells
 Mucus cells
 Rennin
2.08 Understand the functions and disorders of
the digestive system 12

13. Functions of the digestive system
Small Intestine
2.08 Understand the functions and disorders of
the digestive system 13

14. Functions of the digestive system
Pancreas
 What digestive enzymes
are secreted by the
pancreas?
2.08 Understand the functions and disorders of
the digestive system 14

15. Functions of the digestive system
Liver
1- Manufacture bile
2- Produce and store glycogen
3- Detoxify alcohol, drugs, and
harmful substances
4- Manufacture blood proteins
5- Prepare urea
6- Store vitamins
7- Break down hormones
8- Remove red blood cells and
recycle iron content
2.08 Understand the functions and disorders of
the digestive system 15

16. Functions of the digestive system
Gallbladde
r
2.08 Understand the functions and disorders of
the digestive system 16

17. Functions of the digestive system
Large
Intestine
 What are the functions of the
large intestines?
2.08 Understand the functions and disorders of
the digestive system 17

18. Functions of the digestive system
 Fecal transplant
 Allows the bacteria from  Used to treat Clostridium
the healthy stool to difficile that grows in
repopulate the gut of the human intestines
patient who has lost  Symptoms range from
healthy bacteria in their persistent diarrhea to life-
threatening inflammation of
gut
the colon to death
2.08 Understand the functions and disorders of
the digestive system 18

19. Functions of the digestive system
2.08 Understand the functions and disorders of
the digestive system 19

20. Disorders of the digestive system
 Anorexia  Anorexia nervosa
 Decreased or poor  Eating disorder
appetite characterized by
refusal to eat
 Symptom
 Psychiatric disorder
2.08 Understand the functions and disorders of
the digestive system 20

21. Disorders of the digestive system
Caries
 What is another name for
caries?
 What are caries?
2.08 Understand the functions and disorders of
the digestive system 21

22. Disorders of the digestive system
Cholecystitis
 What is it?
 What are the symptoms?
 How is it treated?
Cholelithiasis (Gallstones)
2.08 Understand the functions and disorders of
the digestive system 22

23. Disorders of the digestive system
Cleft palate
 What is it?
 How is it treated?
2.08 Understand the functions and disorders of
the digestive system 23

24. Disorders of the digestive system
Cirrhosis
 What is cirrhosis?
 What are the symptoms?
2.08 Understand the functions and disorders of
the digestive system 24

25. Disorders of the digestive system
Constipation
 What is constipation?
 What are some causes?
2.08 Understand the functions and disorders of
the digestive system 25

26. Disorders of the digestive disorders
Diarrhea
 What is it?
 What causes it?
2.08 Understand the functions and disorders of
the digestive system 26

27. Disorders of the digestive disorders
Gastroenteritis
What is it?
What causes it?
2.08 Understand the functions and
disorders of the digestive system 27

28. Disorders of the digestive system
Gastroesophageal Reflux Disease (GERD)
What is it?
What causes it?
2.08 Understand the functions and disorders of
the digestive system 28

29. Disorders of the digestive system
Hepatitis
 Hepatitis A
 Hepatitis B
 Hepatitis C
 Hepatitis D
 Hepatitis E
2.08 Understand the functions and disorders of
the digestive system 29

30. Disorders of the digestive system
Irritable bowel syndrome
 What is it?
 What causes it?
 How is it treated?
2.08 Understand the functions and disorders of
the digestive system 30

31. Disorders of the digestive system
Peptic ulcer
 What is it?
 What causes it?
 How is it treated?
2.08 Understand the functions and disorders of
the digestive system 31

32. Relevance of nutrition to the
digestive system
 Healthy dietary habits
help maintain
homeostasis of body
systems
2.08 Understand the functions and disorders of
the digestive system 32

33. Relevance of nutrition to the
digestive system
 Vitamins  Electrolytes
 Fat soluble  Calcium
 Vitamins A, D, E, K  Chloride
 Water soluble  Magnesium
 Vitamins C, B  Phosphorus
 Potassium
 Sodium
2.08 Understand the functions and
disorders of the digestive system 33

34. 2.08 Understand the functions and
disorders of the digestive system
Essential questions
 What are the functions of the digestive system?
 How do the functions of chemical and physical digestion
interrelate?
 What are the common disorders of the digestive system?
 How are disorders of the digestive system treated?
 How do you relate the body’s use of nutrients to the
digestive system?
2.08 Understand the functions and disorders of
the digestive system 34