Wednesday, December 30, 2009

Week 8

In conclusion,digestion is an important life process but it also could be affected very easily as well. We must be hygienic and also watch what we eat.We should also avoid food or water which has a chance of being contaminated.

Wednesday, December 23, 2009

Week 7:Digestion Problems(Gastric Flu)

Contaminated food and water is the main cause of gastric flu. Victims would womit and have diarrhea and this would last for at least 1-2 days. The victim would also have stomach ache, headache and fever.Gastric flu is not a serious illness it could be cured by resting and taking medication. Gastric flu is a contagious and we should keep a distance from people who has gastric flu..289639-main_Full.jpg

imgres.jpg I have my very own experience with gastric flu and you would feel very terrible sick.

Tuesday, December 22, 2009

Week 6: The process of digestion

In humans, the food enters our body through mouth which is chewed into smaller pieces of food. After that we would swallow the food and it would enter our gullet which is then pushed down into the stomach. The saliva in our mouth also plays an important part in digestion. Stomach has acid which kills most contaminating microorganisms and begins to breaks down some of food. After a few hours the food travels to small intestine and even more digestive juices are added. This is the part where the nutrients are absorbes into the blood stream. Then the rest is moved into the large intestine where water and mineral salts are absorbed. The rest is excreted through the anus.

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Monday, December 7, 2009

Week 5 Digestion Problems

Some people have diarrhea because they take a lot of spicy food and the body cannot digest the food well.Several types of bacteria in contaminated food and water can also cause diarrhea. Some people also have irritable bowel syndrome which causes diarrhea.