The Gastrointestinal System

1. Which organs are apart of the gastrointestinal tract? Mouth, Pharynx, Esophagus, Stomach, Small intestine, Large intestine and Anus 2. Which organs are accessory to the GI tract? Salivary glands, Gall bladder, Liver and Pancreas 3. 1st stage of the digestion process? Ingestion 4. 2nd stage of the digestion process? Propulsion 5. What is the meaning of propulsion? The movement of food by swallowing 6. What is the meaning of peristal- Movement of food by alternate contractsis? ing and relaxing 7. 3rd stage of the digestion process? Mechanical digestion 8. What is mechanical digestion? Chewing in the mouth, churning in the stomach, Segmentation in the small intestine. 9. 4th stage of the digestion process? Chemical digestion (by enzymes) 10. 5th stage of the digestion process? Absorption 11. What is the meaning of absorption? Transport of digested end products into blood and lymph in wall of canal. 12. Last stage of digestion process? Elimination 13. What is the meaning of elimina- Removal of indigestible substances from tion? the body as feces. 14. 1/2 What are the four layers from the The mucosa, submucosa, muscularis oesophagus to the anal canal? externa, serosa 15. What are the 3 layers of the mu- Lining epithelium, Lamina propria, Muscosa (mucus membrane)? cularis mucosae 16. What is the function of the lining Absorbs nutrients and excretes mucus. epithelium? 17. What is the function of the Lami- The na propria? 18. What is the function of the Muscularis mucosae? 2/2