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Digestive System
2
Digestive
Gall Bladder
Mouth
stores bile until needed
System
Food is broken down mechanically by chewing and saliva
Liver
Esophagus
manufactures bile, a detergent-like substance that facilitates digestion of fats
It is a long tube that runs from the mouth to the stomach
Pancreas
manufactures enzymes to digest macromolecules; secertes bicarbonate to neutralize stomach acid that enters small intestine
Macromolecules
Stomach
A large bag-like organ that churns the food and adds strong acid.
Rectum
- Fats
- Carbonhydrates
- Proteins
stores waste prior to elimination
Small intestine
Large intestine
Food enters the duodenum, through the jejunum and then the ileum; bile and different enzymes help to breakdown the food.
Absorbs water and salts; passes remaining undigested materials and some water out of body
http://www.neok12.com/quiz/DIGSYS04
What happens to your food?
What happens to your food?
What you need stays in. What you don’t goes out.
That’s what digestion’s all about.
The food starts in your mouth.
The food starts in your mouth.
Your teeth break it up with saliva too,
And before you can eat something new,
It’s in your esophagus tube.
It’s in your esophagus tube.
Then in your stomach it breaks up again
The food’s so small; what happens then?
To the intestines it rolls.
To the intestines it rolls.
For some food the story’s done
But vitamins and mineral go on a blood run.
Your blood takes what it needs.
Your blood takes what it needs
To your bones, skin, brain and heart
To make your body strong and smart.
What happens to your food?
What happens to your food?
What you need stays in. What you don’t goes out.
That’s what digestion’s all about.