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Name: ____________________________________________ Date: _______________ Period: _____
Review Digestive System
Directions: Answer each question from the following Internet web site.
http://tqjunior.thinkquest.org/5777/dig1.htm
1. Define DIGESTION.
_________________________________________________________________________________
2. List the major organs of the digestive system.
_________________________________________________________________________________
Click “Follow Me for the Tour”
3. What happens to food while chewing? __________________________________________________
4. A. What is the role of our front teeth?
B. What is the role of our back teeth?
a. ___________________________________________________________________________
b. ___________________________________________________________________________
5. Label the 3 parts of a tooth.
6. At what age do humans start to grow teeth? ______________________________________________
7. What two things does saliva do?
a. ___________________________________________________________________________
b. ___________________________________________________________________________
8. Which passage way leads to the stomach? _______________________________________________
9. What pushes your food to the back of your mouth? ________________________________________
Click “Next”
10. Define ACIDS. ____________________________________________________________________
11. Besides acids and enzymes, what else helps to break down food in your stomach? _______________
12. Where does food travel after leaving the stomach? ________________________________________
13. A. How long is the small intestine?
B. What is the diameter?
a. __________________________________
b. _______________________________
14. Define PERISTALSIS.
_________________________________________________________________________________
15. Define VILLI? (Do not tell me: “Millions of fingers”)
_________________________________________________________________________________
16. Where does unabsorbed food travel after leaving the small intestine? __________________________
17. Why is the large intestine called “large” if it is only 5 feet long?
_________________________________________________________________________________
18. What three things form feces?
a. ______________________
b. ______________________
c. ______________________
19. Why are feces solid?
_________________________________________________________________________________
20. How long can it take food to pass through your digestive system? ____________________________
Click “Next”
21. Where is the pancreas located? ________________________________________________________
22. What does the pancreas do?
_________________________________________________________________________________
23. Why is insulin needed? ______________________________________________________________
24. Where is the liver located? ___________________________________________________________
25. Name the largest gland in the human body? ______________________________________________
26. Name two substances that are created by the liver.
a. _____________________________
b. ______________________________
27. Define BILE.
_________________________________________________________________________________
28. How much bile can be stored in the gallbladder? __________________________________________