Digestive System
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| nutrient | a substance that can be used by the body to give materials for energy and for cell growth and repair
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| primary organ | organs that break down food as food passes through them, comes into contact with the food
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| secondary organ | pancreas,liver, gallbladder- secretes digestive juices,food does not travel through
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| mouth | begins to break down food into smaller pieces mechanically by chewing and chemically begins digesting carbohydrates
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| esophagus | the tube that carries food from mouth to stoamch
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| stomach | continues the process of mechanical digestion, and secretes gastric juices that continue the process of chemical digestion started in the mouth
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| small intestines | the organ where most of the chemical digestion of food takes place; nutrients from food are also absorbed into the bloodstream through this organ
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| large intestine | the organ where water from the undigested food is absorbed into the bloodstream; prepares the remaining undigested food for elimination from the body
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| rectum | a short tube that stores the solid waste until it is eliminated from the body
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| anus | opening where the solid waste is eliminated from the body
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| liver | produces bile, which is used by the body to break up fat, and it filters toxins from blood (secondary organ)
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| gallbladder | stores bile produced by the liver (secondary organ)
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| pancreas | produces digestive juices that help to further breakdown the food in the small intestine (secondary organ)
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| Mechanical digestion | the physical breakdown of food by teeth or muscle action.
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| Chemical digestion | the breakdown of food by body chemicals(enzymes, acids)
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| Enzyme | a type of protein that speeds up chemical reactions in the body
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| 6 classes of nutrients | proteins,carbohydrates,fats,vitamins,minerals,water
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| carbohydrate | sugar and starch, main source of energy
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| protein | needed to make new cells and repair damaged cells
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| fats | needed to make cell membrane and to insulate the body and protect internal organs
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| sugars | found in candy jelly, table sugar fruits
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| starch | found in bread, potatoes, pasta, cereals
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| proteins | found in meat,eggs cheese, dried beans
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| organs food passes through in order | mouth,esophagus,stomach,small intestine, large intestine, rectum, anus.
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| small intestine | longer than large intestine but smaller in diameter.
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| pancreas | produces insulin. If the pancreas is not working right, you may develop diabetes
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