The acid doesn't melt through because the stomach walls are coated with a sticky, neutralizing mucus. A new layer is generated every two weeks. If a new layer is slow to develop ulcers may appear
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Top 5 Amazing Facts About the Stomach
#2
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Most of your food is actually broken down and digested by the small intestine after the stomach turns it into a substance called "chyme"
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#3
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Between 3-4 days after death, the acid and enzymes in your stomach and digestive system will begin to eat your body
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#4
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The stomach secretes hydrochloric acid and enzymes to help digest food and also kill harmful foreign microbes. It's powerful enough to dissolve bone and most metals, too
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#5
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The pH level of your stomach acid is 2 or VERY high
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#6
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It can hold about 1.5 litres of food/drink at any given time
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#7
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Contrary to popular belief, cows, deer and giraffes have separate chambers in their stomachs, NOT multiple stomachs
