2. The brain tells the
body what to do, but it
needs information
first, this is where the
nervous system comes
in.
3. There are two main
part’s in the nervous
system, the central
nervous system and
the peripheral system.
The nervous system is
all to do with passing
information through
the body and into the
brain.
4. Nerves carry messages
to and from your brain,
telling it if you are
hungry, hot, cold or in
pain. Nerves run from
your spinal cord- a
thick rope of nerves
inside your back bone-
to every part of your
body.
5. The central nervous
system is to do with
the brain and spinal
cord.
While the peripheral
system is to do with
the senses.
7. Nerves divide many
times as they leave the
spinal cord so that they
may reach all parts of
the body. The thickest
nerve is 1 inch thick and
the thinnest is thinner
than a human hair. Each
nerve is a bundle of
hundreds or thousands
of neurons (nerve cells).
8. The spinal cord runs
down a tunnel of holes
in your backbone or
spine. The bones
protect it from
damage. The cord is a
thick bundle of nerves,
connecting your brain
to the rest of your
body.
9. The peripheral Neurons unlike
system is made up other cells in the
of nerve cells or body, can not be
neurons, that are repaired like other
wired through the cells can.
body, and connect All of your senses
up with the brain. are wired up and
sent to the brain.
10.
11. All senses depend on the
working nervous system.
Our sense organs start to
work when something
stimulates special nerve
cells called receptors in a
sense organ.
We have five main sense
organs. They are the eyes,
nose, ears, tongue, and
skin.
