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| Question | Answer |
| What does the stomach do? | Food is stored in stomach for 1-6 hours. The muscular wall of stomach contract and relax, churning up the food. This further digests the food mixing it with gastric juice. |
| What does gastric juice contains? | 1. Hydrochloric acid 2. Mucus 3. Digestive juices |
| Hydrochloric acid? | A strong acid that kills many of the bacteria that may have entered the body with food. |
| Mucus? | Creates a layer the lining of these stomach and prevents the stomach digesting itself. |
| Digestive juice? | Contains chemicals that start the digestion of protein. |
| Duodenum? | The first part of your small intestine |
| What are the two tubes which enters the duodenum? | Pancreas and liver |
| Pancreas? | It's an organ that produces pancreatic juices. Pancreatic juices contain chemicals that help digest the carbohydrates, fats and proteins. |
| Liver? | Performs more than 500 different chemical process. The process in liver that is important in digestion is the production of bile. |
| Bile? | A greenish liquid responsible for chemical digestions for fats. Bile causes large pieces of fat in food to be broken down into tiny pieces. |
| Nutrients that pass from the small intestines are: | 1. Fatty acid and glycerol produced from digestion of fats. 2. Amino acids from digestion of proteins. 3. Glucose from the digestion of carbs |
| What is the final section of our digestive tract? | Large intestine |
| What does the large intestine do? | Water is reabsorbed into the body from what is of the food, along with any remaining nutrients.......... |
| Example of digestive disorders: | 1. Vomiting 2. Diarrhea 3. Heartburn 4. Appendicitis |
| Vomiting | Stress or infections such as gastroenteritis can cause the muscular wall of the stomach and small intestine to contract. Vomit is partly digested food mixed with stomach acid and bile. |
| Diarrhea | Cause the lining of the small intestine o become inflamed so that it can no longer absorb water from the faeces. People with this digestive disorder should drink plenty of water. |
| Heartburn | Unlike the stomach, oesophagus does not have mucus protecting the lining from stomach acids. The burning sensation of heartburn is the acid attacking the lining of the oesophagus. |
| Appendicitis | If the opening of the appendix is blocked, then the appendix fills with mucus. It became inflamed and swollen, causing the pain of appendicitis. |
| Cow's teeth and intestine | Cow's teeth are designed to grind up grass and other plants. A cow's intestine are much larger than the dog's. |
| Dog's teeth and intestine | The front teeth are designed as to hold meat and tear it to small pieces. The back teeth are to cutting rather than chewing. |
| Human compare to animal | 1. Have shorter digestion than the cow's but longer than the dog's. 2. Teeth are designed for both chewing and cutting. 3. Omnivore |
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