Clips from Operation Ouch! We find out what a real human brain looks like and how it controls every action within your body.
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Are you ready for our Ouch Snips?
Especially if you're in maths class.
Believe it or not, the answer is B!
Your brain really does perform
10 quadrillion calculations
Which means your brain's the most
complicated computer on the planet!
So, why is it so wrinkly?
This is a case for
I'm here at the Brain Cut Room
at University College - London.
And I'm about to get very close to
a real human brain.
This is not for the squeamish.
We've got exclusive access to this
human brain to show you
all its inner workings.
This organ controls every single
thing you do.
Even now, your brain is busy sending
messages all over your body.
No, this brain feels rubbery
because it's been preserved.
But the brain inside your head right
now is soft and squishy.
That's because our brains
are actually made up of 75% water
and the rest is mostly fat.
And the average adult brain
weighs 1.5 kilos.
That's as much as three
tins of baked beans.
Try picking them up and you will see
how much weight a neck has to carry.
And if you look
closely at the brain, you can
see that it's actually
all folded up.
If we unfolded all this,
it would be enormous
and we would need a head the
size of a surfboard.
But there's more to find
out than that.
This big, wrinkly structure is
controlling your body 24/7.
Yes, even when you are asleep.
So, although the brain is
full of fat and water,
it's actually one of the most
amazing computers on earth.
Not bad for something that
looks like a sponge.
But how does your brain control
the rest of your body?
Well, it's all done by sending
through your nerves to your muscles.
Whether you're walking,
blinking or picking your nose,
it's these messages from the brain
that control movement.
But we have a clever way to
interfere with these signals.
Time to head to the lab.
And in order to do that, we
are going to use this multipulse
transcranial magnetic stimulator!
It's a big magnet.
But it's a cool, big magnet.
It sends electric magnetic
pulses to the brain,
which interfere with the brain's own
electrical signals and that
means we can use it to work out
which bit of the brain does what.
Let's give this brain
scrambler a whirl.
what I want you to do first of all,
is reach up with your left hand
and pick your nose. All right?
You did it perfectly, that's lovely.
Now, I'm going to get you to do
the same thing again,
but this time, I'm going to try and
interfere with the brain scrambler.
So, Chris, when you are ready,
pick your nose.
Every time Chris's finger wiggles,
that's the magnet
or brain scrambler,
interfering with his
which means he can't
pick his nose properly.
Did you miss?
But the magnetic brain scrambler
is also showing us
which part of Chris's brain
controls his left hand.
I'm on the right
side of Chris's body,
but it's his left hand
that is twitching.
Now that's because your brain is
wired back to front.
So, the right side of his brain
controls the left side of his body,
and vice versa. So,
let's now try it on the other side.
And you are ready, go.
So, now I'm interfering with
the left side of Chris's brain
and look, his right hand
is all over the place.
I feel like a cup of tea.
That sounds lovely.
Actually, it's me that's drinking
the tea and it's cold tea,
but you'll see why.
I reckon we could have a bit of fun
with this brain scrambler.
Whoop, there it goes.
The brain scrambler is interfering
with our brain's normal signals
and it's creating a right mess.
So, we've shown you what a real
human brain looks like.
And that the brain is an amazing
organ that controls
everything you do with superfast
See you next time!
MOUTHS: Bye. MOUTHS: