Download Digestive System - Gallion-Wiki

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Digestive System is made up of several organs
that are connected to each other.
The digestive system crushes, grinds, mashes,
dissolves, and changes food.
It breaks food into pieces even smaller than
your cells in a process called digestion.
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Digestion begins in the mouth. Teeth chew,
chop and grind food into smaller pieces.
Saliva mixes with the small pieces and starts to
break down food.
Liquids in your digestive system that help
break down food are called digestive juices
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Swallowed food passes into the esophagus.
Food is moved through the esophagus by a
wave-like squeezing action.
This called peristalsis.
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Stomach is a hollow, muscular organ that
helps break down food.
It contains glands that make acid and other
digestive juices.
Stomach walls squeeze the food and mix it
with the digestive juices.
The squeezing and mixing turn the food into a
thick liquid.
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When food leaves the stomach, it enters the
small intestine.
This is a long, narrow tube.
It is about 20 feet long.
It fits in your body since it is folded back and
forth many times.
Most of the work of digestion takes place in the
small intestine.
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The pancreas is a digestive organ that makes
digestive juices that break down starches,
proteins, and fats.
The pancreas also makes a hormone called
insulin. Insulin helps the body use sugar.
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The liver is a
digestive organ that
makes bile.
Bile is a digestive
juice that flows into
the gallbladder
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The gallbladder is a
digestive organ that
stores bile. The
gallbladder does not
make digestive juices
of its own. It squirts
our bile when fats
from food enter the
small intestine.
Bile helps digest fats.
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In the small intestine, food is broken down into
nutrients small enough to enter the blood.
Nutrients enter the blood through capillaries.
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The body cannot digest all parts of the food
you eat.
The parts that are left pass into the large
intestine.
The large intestine is wider and shorter than
the small intestine.
It is about 3 feet long (1 meter).
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Your large intestine takes most of the
remaining water out of the food. Water passes
through the wall of the large intestine.
Then it goes into your blood.
Your large intestine stores the wastes that are
left.
These parts leave your body as solid waste
when you have a bowel movement.
The food you eat should have plenty of water
and indigestible material (fiber), such as that
found in fresh fruits and vegetables.
 They help the large
intestine to empty
regularly without
working too hard.
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