Download THE BRAIN

THE BRAIN
The brain is quit a small organ, but
has a very big job of controlling your
body.
FACANATING FACTS
• The human brain is like a powerful computer that stores
our memory and controls how we as humans think and
react.
• Scientists still don’t know what all the parts do!
• as the brain evolved it become more and more complicated.
• The brain contains billions of nerve cells that send and
receive information around the body to help the body
move.
More facts
• did you know that the human brain weighs only
3 pounds and is about the size of a large
grapefruit?
• Your brain is full of billions of microscopic
cells. Many of these cells are special
messengers called neurons. Neuron means
"nerve cell.“
We have about 100 billion neurons in our body.
To picture the size of a neuron, think about the
fact that 30,000 neurons can fit on the head of
a pin!
WHAT Neurons
ARE
• The human body is made up of trillions of cells. Cells
of the nervous system, called nerve cells or neurons,
they are specialized to carry messages through an
electrochemical process. The human brain has
approximately 100 billion neurons!
• The brain has even got Neurons for taste!
• This is a picture
Of the neurons.
Neurons in the brain
• Neurons come in many different shapes and sizes. Some of
the smallest neurons have cell bodies that are only 4 microns
wide. Some of the biggest neurons have cell bodies that are
100 microns wide. (Remember that 1 micron is equal to one
thousandth of a millimeter!).
• Neurons are surrounded by a cell membrane.
Optical illusions
• Your brain can be tricked a lot especely in the
eyes. This is how it happens.
• See optical illusions website
Parts of the brain
You have many parts of your brain, we are
surtain about what some do but others not so
sure. Here are there names.
NAMES
• Frontal lobe, its job is your persanality.
• Hipacampie, its job is memory.
• And that is all I now!
Good bye
• Thank you for watching my power point on
the brain.