Inside

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Inside My Body
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Inside My Body
Have you ever looked in the mirror and wondered
whats underneath your skin? Its your organs!
Your skin, your heart, your brain, your lungs and
many other things are all organs.
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So lets have a look inside...
This picture shows the main organs of your body.
Lets see if you know what they are called.
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brain
lungs
heart
stomach
liver
small intestine
large intestine
skin
Lets have a look at them in more detail.
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The Brain
Your brain is about the size of a small
cauliflower. It sends messages to the rest of
your body using the spinal cord. It is a bit like
your bodys own control centre!
Your brain is protected by your skull and is
surrounded by fluid to cushion it if you fall
over.
Your brain needs oxygen from blood to work
properly. 3,500 pints of blood flow through the
brain every day!
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The brain has two sides that control different
things in our body.
The right side of the brain is the creative side.
The left side of the brain is the logical side.
There are areas of the brain that help with all
of our senses, our behaviour, our speech, our
memory and our movements.
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The Lungs
Your body needs oxygen to stay alive. When you
breathe in, oxygen enters your lungs. The oxygen
goes into your bloodstream through your lungs and
is carried to the parts of the body that need it.
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Your lungs take up most of the space in your
chest.
They are protected by your ribcage.
Your left lung is smaller than your right lung so
that there is enough space for your heart.
Your lungs allow you to take in fresh air and get
rid of stale air.
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The Heart
Your heart is like a pump but it is really a
muscle. It's located a little to the left of the
middle of your chest, and it's about the size of
your fist.
The heart sends blood around your body. The blood
provides your body with the oxygen and nutrients
it needs.
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The right side of your heart receives blood from
the body and pumps it to the lungs.
The left side of the heart does the exact
opposite It receives blood from the lungs and
pumps it out to the body.
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The Liver
The liver is the largest organ inside your body.
When you are fully grown your liver will weigh
1.5 kilograms, but by the time you are 60 years
old it will have shrunk to 0.8 kilograms! Dont
worry it will still do its job!
The liver helps the body store energy and gets
rid of toxins.
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The Stomach
When you eat food passes into your stomach and
stays there for two-and-a-half to three hours.
Your stomach muscles squash the food until it is
a creamy pulp.
Your stomach produces juices to break down the
food and kill germs you may have swallowed.
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Your intestines are in two parts.
The Intestines
The large intestine
The small intestine
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Your small intestine is a narrow coiled tube that
is about 6 or 7 metres long. When food leaves
your stomach it comes here so that nutrients can
be absorbed back into the body.
Water and food that cannot be digested pass into
your large intestine and come out of your body as
waste.
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The Skin
Your skin is the bodys biggest organ!
Your skin is very important. It covers and
protects everything inside your body.

• Skin
• protects our bodies
• helps keep our bodies at just the right
  temperature
• allows us to have the sense of touch 

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The skin is tough and strong, just right for
covering your body and protecting it. Skin is
always renewing itself . Though you can't see it
happening, every minute of the day we lose about
30,000 to 40,000 dead skin cells off the surface
of our skin.
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What about the other organs in our body?
Our diagram looked showed only some of the organs
in our body. There are many others, too many for
us to look at now. Lets just look at a couple
more that are important.
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Kidneys come in pairs. If you've ever seen a
kidney bean, then you have a pretty good idea
what the kidneys look like. Each kidney 13
centimeters long and about 8 centimeters wide -
about the size of a computer mouse.
The Kidneys
The kidneys are every bit as important as the
heart. You need at least one kidney to live!
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One of the main jobs of the kidneys is to filter
the waste out of the blood. Most of the waste is
just stuff your body doesn't need because it
already has enough. The waste has to go
somewhere this is where the kidneys come in. The
waste that is collected combines with water
(which is also filtered out of the kidneys) to
make urine. This travels to the bladder.
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The bladder is a bag that collects the urine that
leaves the kidneys. When your bladder is about
half full it sends message to your brain and you
go to the toilet.
The Bladder
The bladder
Drinking plenty of water and avoiding rich food
helps keep your bladder and kidneys in good
condition.
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I hope you have enjoyed looking at some of your
bodys organs. Lets see how many you remember.
brain
lungs
heart
liver
stomach
kidneys
large intestine
small intestine
bladder
skin
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Produced by Bev Evans 2006