digestive system jeopardy. 10 pts: where does digestion start? mouth bonus 10 pts: name 2 things in...
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Digestive System Jeopardy
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10 pts: Where does digestion start?
Mouth
BONUS 10 pts: Name 2 things in the mouth that help break down food
Teeth, tongue, saliva
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esophagus
10 pts: What organ takes food from the mouth to the stomach?
Bonus 10 pts: What is the flap called that covers the glottis? Epiglottis
•Esophagus made of smooth muscle
•Contractions called peristalsis move food down throat
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Stomach
10 pts: What organ comes after the esophagus in digestion?
Bonus 10 pts: Sometimes acid can go back up the esophagus, which causes this condition… Heart burn, or acid reflux
• Ring of muscle between esophagus and stomach allows food to pass through, called the esophageal sphincter
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20 pts: What in the stomach helps digest food?
Stomach acid
Bonus 20 pts: What is the pH of stomach acid?
About pH 1 (Battery acid is pH 0, and Cola is 2.5)
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20 pts: Why doesn’t stomach acid eat through the lining of the stomach?
Stomach secretes mucus to protect the lining of the stomach
Bonus 20 pts: What occurs if the mucus of the stomach lining wears away?
Stomach ulcer
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20 pts: Besides stomach acid, how else is food digested in the stomach?
Stomach also churns food using muscle contractions
Bonus 20 pts: About how many hours does food spend in the stomach?
About 2 – 4 hours
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30 pts: What is the next digestive organ after the stomach?
Small intestine
Pyloric sphincter lets food from stomach to the small intestine
Made of thick ring of muscle
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30 pts: What is the main role of the small intestine?
Absorbing nutrients
Villi are small finger-like projections in the small intestine that absorb nutrients
Food spends about 3-5 hrs in the small intestine
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30 pts: Bile is the enzyme that is made by this organ, which aids in digestion.
Liver
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40 pts: In which organ is bile stored?
Gallbladder
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40 pts: Where is the gallbladder located?
Underneath the liver – connects the liver to the small intestine
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40 pts: What other organ, which is found near the stomach, secretes enzymes for digestion?
Pancreas
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50 pts: What is the main job of the large intestine?
Absorbs water
Between the small and large intestine is a small pouch
In humans – the appendix (function unknown) In other mammals – the cecum (function to break
down cellulose
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50 pts: Where does undigested food go after leaving the large intestine?
Rectum Undigested food can stay in the large
intestine for 10 hours to several days
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50 pts: Where does food go after leaving the rectum?
Through the anus into the toilet
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Next 3 questions are open to all teams – each worth 20 pts
1. This condition occurs when the large intestine doesn’t absorb enough water
Diarrhea2. This condition occurs when too much water
is absorbedConstipation3. Approximately how long in meters is the
digestive tract from beginning to end, for the average adult human? (Closest team wins)
9 meters
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Final Jeopardy – make your wager!
Food is processed in 4 phases: ingestion, digestion, absorption, and elimination.
Name one organ that is involved in EACH of these phases
Ingestion – mouth Digestion – stomach Absorption – small or large intestine Elimination – rectum or anus