What happens to that cheeseburger and fries (or, we hope, that whole wheat bread
and green salad) you had for lunch? During the digestive process, food is converted into
energy that's used by your body. Take this quiz to see how much you know about how digestion works.
How does food move through your digestive tract?
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These contractions move food from the esophagus to the stomach, then through the intestine.
Where does most of the digestive process take place?
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Food is broken down and transported through the intestinal wall to other parts of the body.
What does the liver do to help digestion?
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This substance breaks down fats in the intestine. The gallbladder stores bile until it's needed, then releases it to the small intestine.
Which of these can harm the intestinal lining?
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a and b.
Which of these best maintains intestinal health?
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Animal studies have shown that rats eating a low-fiber diet have abnormal intestinal linings. Most Americans eat one-third the recommended 30 grams of fiber per day.
Heartburn results when the acid in the stomach comes up into the esophagus. All of these can relax the muscle that should keep the stomach opening closed.