Download Digestion System

Digestion System
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Digestion- process of breaking
down foods into forms that the
body can use.
Digestive system- group of organs
that breakdown food into
molecules
3 Functions of The digestion
system
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First- it breaks down food into
molecules the body uses
2nd- the molecules are absorbed into
the blood and carried throughout the
body
3rd- wastes are eliminated from the
body.
Step of the Digestive System
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Step #1- You take food into your
mouth
Step #2- You swallow the food and it
goes into the esophagus
Esophagus- short tube that carries
food from mouth to stomach
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Step #3: The food goes down the
esophagus to the stomach.
Stomach- is a bag-like organ
shaped like a J
Step #4: The food goes from the
stomach to the small intestine.
Step #5
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The food goes from the small
intestine to the large intestine.
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Absorption- is the process by which
nutrients molecules pass through the
wall of you digestive system into
your blood.
The food your body can not use
collects in the large intestine as
waste.
2 kinds of digestion
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Mechanical-physically breaking
down food
ex: chewing
Chemical-chemically breaking
down food,
ex: enzymes in your saliva, acid in
your
stomach
Digestion juice help break down
the food
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From three places- (Chemical
Digestion)
LiverPancreasSmall intestine
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Liver- produces digestive juice called bile
Bile- juice made by the liver, that helps
break down fats
Gallbladder- organ under the liver that
stores bile.
Pancreas- produces digestive juices to
further breakdown food
Small intestine
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is like a coil
Stretches to be 6 or 7 meter long
Most digestion takes place in the
small intestine
Large intestine
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Stores unused solid substances after
water is removed.