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The Nervous System
How Does It Work?
by:
Mandy Bourland
Your nervous system has three
components…
Brain
Nerves
Spinal cord
The Most Important Part
of the
Nervous System…
Your brain
controls
everything that
happens in your
body.
The brain has two sides.
The left side of the
brain controls the
right side of the body.
The right side of the
brain controls the left
side of the body.
Nerves are like telephone lines.
They send
messages all over
your body.
These messages
move through your
body faster than you
can blink your eyes.
Nerves travel through the spinal cord.
Your spinal cord is
like an extension
cord that runs
down the center of
your back.
It is protected by
the backbone.
Interesting Facts
Each side of the brain controls the opposite side
of the body.
Your brain is full grown by age 6.
It weighs about three pounds.
Your brain is made mostly of water. (85%)
What if you had no brain or nerves?
You wouldn’t be
able to see,
hear, smell, or
talk.
Ways to keep your nervous system
healthy…
Summary
Functions
sends messages to
the rest of the body
controls all of the
body functions
Components
Brain – control center
Nerves – carry
messages
Spinal cord – a thick
bundle of nerves
Healthy Habits
Exercise
Do challenging activities that make you
think
read, read, read
Lift things carefully – use your legs, not
your back
Works Cited
Carratello, Patricia. My Body. Teacher Created
Materials. 1980.
Young, Ruth M. A Guide for Using The Magic
School Bus – Inside the Human Body – in the
classroom. Teacher Created Materials. 1996.
Microsoft Windows Clipart.
Microsoft Encarta Encyclopedia.