Uestions 1. Define the following terms
a. Digestive system
b. Digestion
c. Absorption
d. Belching
e. Peritoneum
f. Deglutition
2. Explain what happens when food gets into the mouth.
3. Describe the composition and function of saliva.
4. Explain why once food is swallowed can't get back into the
mouth in normal circumstances.
5. State the layers of the alimentary tract.
6. Explain how the stomach is protected from the corrosive
HCL.
7. Describe the composition of gastric juice, name the cells
types responsible for secreting its various component in the
stomach
8. Explain the role of bile and pancreatic juice in digestion

9. Explain 5 functions of the liver.
10. How is the small intestine adapted to perform its function
11. Explain four functions of the large intestine
12. Describe how carbohydrates, proteins and fats are
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