Digestive tract
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| Where does the digestive tract start? | The mouth.
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| What does the saliva do? | moistens and breaks down food.
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| What do the teeth do? | Tear and crush food.
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| What does the tongue do? | Forms the food into a ball.
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| What does the esophagus do? | Transportation tube from the mouth to the stomach.
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| What does the stomach do? | The chemicals break down food and mix it all together.
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| What does the liver do? | Creates food into bile.
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| What is the gall bladder used for? | Storage
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| How does the pancreas help? | it adds extra chemical to the food as it leaves the stomach.
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| what does the small intestine do? | transfers nutrients to the body.
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| what is the role of the large intestine? | Gets rid of stuff the body doesn't need.
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| How long is the small intestine? | 22 feet long
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| What is the alimenary canal? | Muscular tube that is 8 feet long.
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| Cells that produce saliva are called? | amylase
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| The stomach is what kind of shape? | J-shaped
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| What produces amylase? | starch
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| How long is the stomach? | 25-30 centimetres
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| what is one of the muscular layer on the stomach called? | inner circular layer
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| The other layer of muscle on the stomach? | Outer longitudinal layer
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| What are 3 gastric glands? | -Parietal cells -Goblet cells -chief cells
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| what does the muscular sac do? | Churns and mixes food
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| what are 3 types of lipids? | -steroids:Cholesterol
-Trygliceroid:energy source
-phospholypid:cell membrane
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| What is chewed food in you mouth called? | bolus
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| What does cholesterol make? | estrogen and testosterone
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| What vitamin is used in energy production? | V6
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| What are two components of digestion? | Physical and Chemical
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| Two types of carbohydrates? | Sugars and Starch's
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| What process moves food? | peristalsis
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| What muscle does the esophagus pass through before reaching the stomach? | larynx
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| Why does the stomach lining produce mucous? | to help chemically break down food
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| How long is the large intestine? | 5 feet
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| Three organs that aid in digestion? | -liver
-pancreas
-gall bladder
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| Substance that enters the small intestine? | chyme
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| How much water enters the system per day? | 2.5 gallons
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| what role does the appendix play? | immune system
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| what is lactose intolerance? | allergic to dairy
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| What percent of Americans are over weight? | 60%
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| what percent of americans are obese? | 25%
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| What causes people to be over weight? | Unhealthy food
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| How is the colon different from the small intestine? | No villi
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| What is different between the to sphincters? | One is voluntary and one inst
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| What is one amino acid? | protein
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| What are two major types of minor nutrients? | Minerals and vitamins.
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| What is normal flora? | Produces natural nutrients
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| what makes the stomach move? | each muscle contraction
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| What regulates the amount of food leaving the stomach to the small intestine? | stomach sphincters
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| How long does it take for the food to be completely digested? | 24 hours
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| what is the last step to digestion? | the anus
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| what is the technical name for the chewing process? | mastication.
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