1. Digestive Process Students will be able to Describe parts of digestive system Page 60

2. Digestive System Function A. Breaks down food 1. Mechanical – Physical 2. Chemical - Enzymes B. Absorb nutrients into body C. Eliminate waste D. LENGTH 9 meters long *Why so long?* 60

3. II. Parts A. Mouth Mechanical Teeth a. Incisors “Cut” b. Canine “Tear” c. Molar “Grind” Tongue to position food *What can we learn about teeth types?* 62

4. Mouth Chemical Saliva Enzyme Amylase Carbs 63

5. Esophagus Two tubes Trachea for air to lungs Esophagus for food to stomach Pushed down by muscle contractions Peristalsis Separated by epiglottis *What problems does this create?* 63

6. Stomach Mechanical Three layers of muscle Chemical Enzyme Pepsin Protein High Acid Unfold protein Kill germs Covered in mucus *Antacids?* 64

9. Liver Largest internal organ Maintain blood Produces bile Store in gall bladder Aid in fat digestion Removes poisons from food/drink? *Alcohol destroys liver, Why?”* 69

10. Pancreas Produces enzymes Protein, Fat, Carbs Produces Hormones Insulin *How was it discovered?* 70

11. Small Intestine Absorption Tiny Villi VIDEO 70

12. 1.5 meters long 4 - 6 cm wide Lots of bacteria to digest extra Produce some key vitamins Absorption of water Removal of remaining waste APPENDIX? 71 Large Intestine

13. Quiz