Transcript The Respiratory System

Presents:
How We
Breath
Your body has a lot of really cool things it does
every day, but breathing is one of the coolest!
When you breathe you use your “respiratory
system.” Those are just two really big words for
the stuff you use when you breathe.
REMEMBER: DON’T BREATHE ANYTHING THAT COULD HURT YOU!
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The brain controls
every part of your
body – even your
breathing!
Your brain tells your
lungs to breathe
17,000 times a day
without you even
thinking about it.
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How does the air you
breathe in enter your body?
Nose
Air can enter your
body in two ways.
One way is
through your
mouth and the
other is through
your nose.
Is it better to breathe in air
through your nose or mouth?
Nose
Your mouth is big which
means you can quickly
breathe in more air. But it is
better to breathe through
your nose. Your nose helps to
protect your lungs. Noses
clean and warm air before it
reaches your lungs.
You breathe in air
through your mouth or
nose and both of those
lead to your throat.
The fancy name for
your throat is the
pharynx (far-inks).
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If food goes down
your air tube, you
begin to choke.
To make sure food
doesn’t go into the
lungs, you have a lid
to cover your
windpipe. That’s your
food flap,.
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Tilt your head
back and feel
the bump on your
neck. That’s your
voice box.
It contains your
vocal cords.
These vibrate
so you can talk,
make silly sounds
and sing.
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Your food and
water tube, and the
tube to your lungs
sit right beside
each other. When
you swallow, your
food flap closes off
the air tube and
lets food go down
the food tube like
it’s supposed to! If
it doesn’t you can
choke.
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Your windpipe is
the tube that
carries the air
from your
throat to your
lungs. It’s kept
open by rings of
soft bone we call
cartilage.
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Your ribs are the
wall protecting the
lungs from the
outside world. There
are 12 pairs of ribs –
that’s 24 of them!
They are connected
to bones in the front
and back of your
body. Lets see if you
can find your ribs?
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Your diaphragm is a big
muscle that goes
across the body. It
stops the lungs from
squishing your stomach.
When it’s relaxed it’s
shaped like a sideways
C. Now your lungs are
empty. When your
brain tells it to flatten
you fill up with air.
There it is, a breath!
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Lungslungs
Your
are not
seem
thelike a
balloon,
same
size.
when
Bigyou
people
breathe
have
bigger
in they
lungsget big
and round,
than
smaller
and
people.
when you
breathe
Your
lungs
outwill
they
grow
get
smaller.
as
your body gets
bigger.
Lungs are full of millions
of little balloons, lots of
air tubes and blood
vessels. You have one
lung on each side of your
body.
The Lung Association of Saskatchewan ©
Inside your lungs
there are branches
kind of like an upside
down tree. These are
your air tubes.
At the end of them
are your tiny balloons
or air sacs. This is
where the oxygen,
the part of the air
our body needs, gets
into your blood.
The Lung Association of Saskatchewan ©
1.
2.
3.
4.
5.
6.
7.
Air tubes and air sacs
Brain
Throat
Nose or mouth
Lungs
Diaphragm
Windpipe