Let's Get Brainy Operation Ouch!


Let's Get Brainy

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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Transcript


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Are you ready for our Ouch Snips?

Snip!

Ouch!

Exactly.

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Is it...?

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Especially if you're in maths class.

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Believe it or not, the answer is B!

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Your brain really does perform

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10 quadrillion calculations

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a second.

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Which means your brain's the most

complicated computer on the planet!

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So, why is it so wrinkly?

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This is a case for

Investigation Ouch.

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I'm here at the Brain Cut Room

at University College - London.

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And I'm about to get very close to

a real human brain.

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This is not for the squeamish.

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We've got exclusive access to this

human brain to show you

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all its inner workings.

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This organ controls every single

thing you do.

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Even now, your brain is busy sending

messages all over your body.

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No, this brain feels rubbery

because it's been preserved.

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But the brain inside your head right

now is soft and squishy.

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That's because our brains

are actually made up of 75% water

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and the rest is mostly fat.

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And the average adult brain

weighs 1.5 kilos.

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That's as much as three

tins of baked beans.

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Try picking them up and you will see

how much weight a neck has to carry.

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And if you look

closely at the brain, you can

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see that it's actually

all folded up.

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If we unfolded all this,

it would be enormous

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and we would need a head the

size of a surfboard.

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But there's more to find

out than that.

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This big, wrinkly structure is

controlling your body 24/7.

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Yes, even when you are asleep.

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So, although the brain is

full of fat and water,

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it's actually one of the most

amazing computers on earth.

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Not bad for something that

looks like a sponge.

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But how does your brain control

the rest of your body?

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Well, it's all done by sending

electrical messages

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through your nerves to your muscles.

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Whether you're walking,

blinking or picking your nose,

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it's these messages from the brain

that control movement.

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But we have a clever way to

interfere with these signals.

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Time to head to the lab.

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And in order to do that, we

are going to use this multipulse

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transcranial magnetic stimulator!

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It's a big magnet.

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But it's a cool, big magnet.

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It sends electric magnetic

pulses to the brain,

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which interfere with the brain's own

electrical signals and that

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means we can use it to work out

which bit of the brain does what.

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Let's give this brain

scrambler a whirl.

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Now, Chris,

what I want you to do first of all,

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is reach up with your left hand

and pick your nose. All right?

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Perfect.

You did it perfectly, that's lovely.

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Now, I'm going to get you to do

the same thing again,

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but this time, I'm going to try and

interfere with the brain scrambler.

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So, Chris, when you are ready,

pick your nose.

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CLICKING

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Every time Chris's finger wiggles,

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that's the magnet

or brain scrambler,

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interfering with his

brain's signals,

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which means he can't

pick his nose properly.

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Did you miss?

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But the magnetic brain scrambler

is also showing us

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which part of Chris's brain

controls his left hand.

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I'm on the right

side of Chris's body,

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but it's his left hand

that is twitching.

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Now that's because your brain is

wired back to front.

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So, the right side of his brain

controls the left side of his body,

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and vice versa. So,

let's now try it on the other side.

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And you are ready, go.

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So, now I'm interfering with

the left side of Chris's brain

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and look, his right hand

is all over the place.

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I feel like a cup of tea.

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That sounds lovely.

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Actually, it's me that's drinking

the tea and it's cold tea,

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but you'll see why.

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I reckon we could have a bit of fun

with this brain scrambler.

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CLICKING

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Whoop, there it goes.

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HE COUGHS

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The brain scrambler is interfering

with our brain's normal signals

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and it's creating a right mess.

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HE LAUGHS

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So, we've shown you what a real

human brain looks like.

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And that the brain is an amazing

organ that controls

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everything you do with superfast

electrical signals.

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See you next time!

BOTH:

Bye.

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Bye.

Bye.

Bye!

Bye.

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Byeee!

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MOUTHS: Bye. MOUTHS:

Bye.

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