Transcript The Digestive System

Your DIGESTIVE SYSTEM
breaks down food into the
nutrients your body
needs.
Express Lesson Pages 538-539
*only 9 more slides to go
To provide a quick overview of the digestive
system before we discuss specific details
 http://www.youtube.com/watch?v=Z7xKY
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Digestive System Video
Digestive System
Components
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Esophagus
Stomach
Small Intestine
Large Intestine
Gall bladder
Liver
Pancreas
Esophagus
The tube that connects
your mouth and your
stomach
Stomach
A stretchy bag that
holds your food after
you eat
 Helps to break food into
chyme
 Little to no digestion of
nutrients actually occurs
here
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Chyme moves into the small intestine
after leaving the stomach
◦ Tube that is 20 feet long.
◦ Food stays in your small intestine for 4 to 8
hours
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Lined with villi which absorbs nutrients
Small Intestine
 Tube that is 5 feet long
 Gets waste from small intestine
 Waste stays for 10 to 12 hours
 Absorbs water and some minerals
like sodium
Large Intestine
PANCREAS
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Helps your body break down carbs and proteins in the
small intestine
Produces insulin and glucagon which regulates sugar levels
Located under your liver
What other organs play a role in
the digestive system?
LIVER
 Factory for antibodies and bile
◦ Breaks down wastes and poisons from the blood
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Stores vitamins, minerals and sugars until your
body needs them
What other organs play a part
in the digestive system?
How do you take care of
your digestive system?
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Eat foods that are
high in fiber like fruits
and vegetables
Drink plenty of
water
 Chew your food
completely
before you
swallow
 Avoid foods
high in fat
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REVIEW QUESTIONS
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Explain the path food
takes in the body
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Discuss the role(s) of the
large intestine.
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Discuss what happens
in the stomach during
digestion.
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What do the pancreas
and the liver do during
digestion?
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Discuss the role(s) of
the small intestine.