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Gene DeocampoWk13
Week 13
| Question | Answer |
|---|---|
| 1. What are the main functions of the digestive system? | Ingestion, digestion, absorption, and elimination |
| 2. What are the four layers of the GI Tract wall? | Mucosa, submuscosa, muscular is, and serosa |
| 3. What is peristalsis? | Wave-like muscle contractions that push food though the GI tract |
| 4. What does stomach do in digestion? | Churns food and uses enzyme like pepsin and gastric lipase for chemical digestion |
| 5. What helps the small intestine absorb nutrients? | Circular folds, villi, and microvilli that increase surface area |
| 6. What is the liver’s role in digestion? | Produces vile, processes nutrients, detoxifies substances, and stores vitamins. |
| 7. How does pancreas help digestion? | Release enzymes (anmylase, lipase, protease) and bicarbonate to neutralize acid. |
| 8. What does large intestine do? | Absorbs water and electrolytes and forms feces |
| 9. What is the difference between mechanical and chemical digestion? | Mechanical is physical breakdown; Chemical uses enzymes |
| 10. What is the path food takes through the digestive system? | Mouth >esophagus>stomach>small intestine>large intestine>rectum>anus |