1. Page 1 The Digestive System

2. Page 2 Digestive System Challenge Take in complex foods. Mechanically break food down. Chemically break food down. Absorb food to power our bodies. Materials that cannot be absorbed are eliminated through the excretory system.

3. Page 3 Anatomy of Digestion

4. Page 4 Let’s start the journey! In the mouth!

5. Page 5 Salivary Glands:

6. Page 6 Swallowing

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13. Page 13 warm. muscular. very acidic. lined with thousands of gastric glands. gastric juices contain HCL and pepsin. initial chemical breakdown of proteins. more mechanical breakdown. The Stomach

14. Page 14 The Stomach

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16. Page 16 The intestinal tract

17. Page 17 Hernia

18. Page 18 Esphagial Junction

19. Page 19 Diverticulosis

20. Page 20 Questions 1.What are two methods we break down food? 2.What happens to materials our bodies cannot break down? 3.What role does saliva play in digestion? 4.What is a sphincter? 5.What does the epiglotis do? 6.Why doesn't the stomach get disgested itself with all the acid in it? 7.What is one cause of a Peptic ulcer? 8.How is the surface area of the intestine increased ?