The Digestive System


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Learn about the digestive system

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The Digestive System

  1. 1. Learn about The Digestive System By Jess Meek Paeroa College, NZ
  2. 2. Contents <ul><li>Slide 3 The Digestive System Diagram 4 The purpose of the Digestive System 5-9 Interesting Facts: How much do you know? 10 System Organ: The liver </li></ul><ul><li>(diagram) 12 The Purpose of the liver </li></ul><ul><li>How does the liver work 13 Digestive System Organ: The oesophagus </li></ul><ul><li>14 The Purpose of the oesophagus? 15 Gallstones: What is it? 16 Gallstone Symptoms and Treatment 17 Gallstone: Prevention </li></ul>
  3. 3. The Digestive System
  4. 4. <ul><li>The digestive system ingests food, breaks it down so nutrients can be absorbed, & eliminates what cannot be digested. </li></ul>The Digestive System
  5. 5. <ul><li>How many layers is the stomach lined with? </li></ul><ul><li>2 </li></ul><ul><li>4 </li></ul><ul><li>3 </li></ul>How much do you know? 2. What is largest organ in the body? Stomach Liver Pancreas
  6. 6. <ul><li>3. How many functions does the liver perform? </li></ul><ul><li>2 </li></ul><ul><li>100 </li></ul><ul><li>500 </li></ul>How much do you know? 4. How many hours does food stay in the stomach for? 1-2 2-3 3-5
  7. 7. <ul><li>5. True of false, the adult’s digestive system is 8 metres long? </li></ul><ul><li>True </li></ul>How much do you know? 6. On average, how many pints of saliva to we make a day? 0 to 2 1 to 3 2 to 4 3 to 5
  8. 8. <ul><li>7 . True or false; An adult oesophagus ranges from 10 to 14 inches in length. </li></ul><ul><li>True </li></ul>How much do you know? 8. Is the appendix needed to live? Yes No
  9. 9. <ul><li>9. A typical person holds more than 400 distinct species of bacteria? </li></ul><ul><li>True or false? </li></ul>How much do you know? <ul><li>10.On average the stomach produces ___L of HCI daily? </li></ul><ul><li>1 </li></ul><ul><li>2 </li></ul><ul><li>3 </li></ul><ul><li>4 </li></ul>
  10. 10. The Liver
  11. 11. The Purpose of the liver? How does the liver work? it produces a substance called bile (stored in the gall bladder just below the liver) which helps in breaking down liquids (fat) when we are digesting food, it helps with the clotting of blood at a wound and also helps keep the core temp of our body at a level of 27 degrees Celsius. The liver does things such as clean your blood by removing toxins such as medicine and alcohol.
  12. 12. The Pancreas
  13. 13. The Purpose of the oesophagus How does the oesophagus work It is a muscular tube that takes food and water From the mouth to the stomach. It carries the food from the pharynx to the stomach. It has smooth muscles that allow it to perform peristalsis .
  14. 14. Gallstones Gallstones are small, pebble-like substances that develop in the gallbladder. Gallstones form when liquid stored in the gallbladder hardens into pieces of stone-like material. If the liquid bile contains too much cholesterol, bile salts, it can harden into gallstones.
  15. 15. Gallstones <ul><ul><li>pain in the back between the shoulder blades </li></ul></ul><ul><ul><li>pain under the right shoulder </li></ul></ul><ul><ul><li>nausea and vomiting </li></ul></ul><ul><ul><li>fever—even low-grade—or chills </li></ul></ul><ul><ul><li>yellowish colour of the skin or whites of the eyes </li></ul></ul>Symptoms Treatment Drugs made from bile acid are used to dissolve gallstones. Contact dissolution therapy. This experimental procedure involves injecting a drug directly into the gallbladder to dissolve cholesterol stones.
  16. 16. Gallstones <ul><ul><li>1. Maintain a healthy weight. </li></ul></ul><ul><ul><li>2. Control your diabetes. </li></ul></ul><ul><ul><li>3. Watch your cholesterol. </li></ul></ul>Prevention
  17. 17. The End