A To u r o f Yo u r
Reina
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S y s te m
On each page, move your eyes from left to right,
then top to bottom. Then look at the next page.
A Tour of Your Respiratory System
Each picture box
is called a panel.
Read the words for
each panel as you go.
Don’t forget the
word balloons!
Reinforced Library Binding • RL: K-3 IL: 1-2
by Ma ry Re ina
s
illu stra ted by Ch ris B. Jo ne
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Table of Contents
Taking It All In. . . . . . . . . . . . . . . . . .
Going Places . . . . . . . . . . . . . . . . . . .
Letting It All Out . . . . . . . . . . . . . . .
Glossary. . . . . . . . . . . . . . . . . . . . . . .
Read More. . . . . . . . . . . . . . . . . . . . .
Internet Sites. . . . . . . . . . . . . . . . . . .
Index. . . . . . . . . . . . . . . . . . . . . . . . . .
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Hi. We’re
Molly and Ollie Oxygen.
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Taking It All In
We’re a gas in the air you breathe.
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Oxygen keeps you alive. It enters your body
through the respiratory system.
This system of airways lets you breathe in and out.
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The respiratory system brings air to your lungs.
When you breathe in, a wall of muscle called the
diaphragm pulls down.
Here we go!
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This movement lets air flow into your body.
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Your nose cleans and warms the air.
Ewwwwww!
Then the air flows into the throat. It passes through
a long airway called the trachea.
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The trachea splits into two tubes called bronchi.
Each of the bronchi lets air into the lungs.
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