Lisa Greathouse
Consultant
Publishing Credits
Dona Herweck Rice, Editor-in-Chief; Lee Aucoin ,
Gina Montefusco, RN
Creative Director ; Don Tran, Print Production
Childrens Hospital Los Angeles
Manager ; Timothy J. Bradley, Illustration Manager ;
Los Angeles, California
Chris McIntyre, Editorial Director ; James Anderson,
Associate Editor ; Jamey Acosta, Associate Editor ;
Jane Gould, Editor ; Peter Balaskas, Editorial
Administrator ; Neri Garcia, Senior Designer ;
Stephanie Reid, Photo Editor ; Rachelle Cracchiolo,
M.S.Ed., Publisher
Image Credits
cover Sadeugra/Shutterstock; p.1 Sadeugra/Shutterstock; p.4 (left) Pathathai Chungyam/
Dreamstime, (right) Jaren Wicklund/iStockphoto; p.5 (left) Carmen Martnez Bans/iStockphoto,
(top right) Joshua Hodge Photography/iStockphoto, (bottom right) Michelle D. Milliman/
Shutterstock; p.6 Ansar80/Atanas Bozhikov/Shutterstock; p.7 Andriy Petrenko/iStockphoto;
p.8 Davi Sales Batista/Shutterstock; p.9 Felix Mizioznikov/Shutterstock; p.10 (left) Andreas
Gradin/Shutterstock, (right) Miroslaw Pieprzyk/iStockphoto; p.11 Steve Cole/iStockphoto;
p.12 Juriah Mosin/Shutterstock; p.13 (top) Jeff64/Dreamstime, (bottom) Robert Dant/
iStockphoto; p.14 (left) Charles Daghlian/Wikimedia, (right) Oguz Aral/Shutterstock; p.15 Kirill
Kurashov/Algecireo/Shutterstock; p.16 (left) Mikulich Alexander Andreevich/Shutterstock,
(right) Natalya Kozyreva/iStockphoto; p.17 Andrea Danti/Shutterstock; p.18 Michelangelus/
Shutterstock; p.19 Sebastian Kaulitzki/Shutterstock; p.20 Sadeugra/Shutterstock; p.21
Erna Vader/iStockphoto; p.22 Sebastian Kaulitzki/Shutterstock; p.23 (top) Rob Marmion/
Shutterstock, (right) Christopher P. Grant/Shutterstock; p.24 (top) iofoto/Shutterstock,
(bottom) Zurijeta/Shutterstock; p.25 Andrea Danti/Shutterstock; p.26 (left) Angel_Vasilev77/
Shutterstock, (right) Shariff Che Lah/Dreamstime; p.27 Monkey Business Images/Shutterstock;
p.28 Rocket400 Studio/Shutterstock; p.29 Ana Clark; p.32 Dr. Pierre Massion
Teacher Created Materials
5301 Oceanus Drive
Huntington Beach, CA 92649-1030
http://www.tcmpub.com
ISBN 978-1-4333-1431-5
eISBN 978-1-5457-1131-6
2011 Teacher Created Materials, Inc.
Table of Contents
Staying Alive
You do it every time you take a step,
throw a ball, or just say hello. You do not
even think about it.
What is it? It is breathing, of course!
You need to breathe to stay alive. Many
parts of your body work together so you
can breathe.
brain
heart
Your brain,
heart,
and lungs
all work
together to
lungs
keep you
breathing.
But, you could not get air in your
body without your lungs!
Fun Fact
Your lungs are pink and
squishylike a sponge!
Breathe in. Your chest gets bigger.
Breathe out. Your chest gets smaller.
That is because your lungs are in there.
You have two lungs. Your heart is
between them.
You breathe about 20 times each
minute. You breathe faster when your body
works harder, like when you run.
Where does the air go after you breathe
it in?
Listen Up!
The doctor
listens to
your lungs
when you
go for a
checkup.
Breathing
Your nose does more than just smell!
Your nose takes in air when you inhale .
Sticky hairs in your nose clean the air as
it goes by. What do you think about that?
nose hairs
Next, the air goes to your windpipe .
The windpipe is a tube in your neck. The
tube is long.
Little hairs in
your windpipe
windpipe
clean the air
you breathe.
This is what
they look like
much bigger!
Your windpipe also helps clean the air
before it gets to your lungs.
There is oxygen (OK-si-juhn) in the air
that you breathe.
Your lungs and heart work to send the
oxygen to cells all over your body. The
oxygen keeps you alive!
blood vessels
carry the blood
Your blood carries
oxygen from your
lungs to cells all