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12 Cards in this Set
- Front
- Back
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Digestion
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To break down food into molecules the body can use
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Absorption
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Molecules are absorbed into the blood and carried through the body.
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Elimination
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Wastes are eliminated from the body.
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The two types of digestion...
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Chemical (changed chemically)
Mechanical (broken down into smaller pieces) |
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What path do these nutrients follow?
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Mouth
Esophagus Stomach Small Intestine Large Intestine Rectum Anus |
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Digestion in the mouth...
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Teeth - mechanical
Saliva - chemical |
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Digestion in the esophagus...
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connects mouth to stomach, lined with mucus.
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Digestion in the stomach...
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The stomach expands to hold two liters of food.
Mechanical with muscles. Chemical with hydrochloric acid. Food stays here until it is all liquids. |
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Digestion in the small intestines...
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6 meters, 2-3 cms wide
All chemical digestion, no mechanical. Absorption takes place here. |
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Large Intestine
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Last section of digestive system.
Contains bacteria that feed on food. Water and undigested food enters. H20 enters blood flow. |
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Rectum
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End of LI.
Waste is compressed into solid form. |
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Anus
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Where wastes are eliminated.
Muscular opening and end of rectum. |
