Get A Move On Operation Ouch!


Get A Move On

Clips from Operation Ouch! Muscle and tendons work together to make our bodies move - we show you how.


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Transcript


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Are you ready for Ouch! Snips?

Snip!

Ouch!

Exactly!

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They do everything from pumping

blood around your body to

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helping lift your heavy schoolbag.

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Meet Tiny from Tottenham.

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Yep, we've already met.

Tiny,

put my brother down!

Go on, mate.

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Put me down!

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You've got a lot of muscle.

Can we have a look at your biceps?

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Chris, not you.

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How big is that bicep?

24 inches.

24

inches - so that is 61 centimetres.

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That's amazing! So Tiny's bicep is

probably bigger than your waist.

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Tiny's muscles are big and very,

very strong,

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but what are they made of?

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Well, your muscles are made up

of fibres formed from millions of

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individual cells,

and blood vessels deliver the energy

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that your muscles

need in order to move.

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It's been an absolute pleasure.

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Thank you

so much for coming in today.

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Argh!

Chris, never be cheeky to

a man called Tiny!

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So, how do our muscles

actually work?

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Now, your brain controls

your muscles by sending a small

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electrical charge

down a nerve to the muscle.

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That tells the muscle to move.

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But what happens when we take

control away from the brain

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and stimulate the muscle directly

with these electrodes?

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I'm attaching electricity-conducting

pads to Chris' arms.

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When I press these buttons,

electrical charges are sent

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directly to his muscles,

which will make his arms move. See?

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That was me!

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Now let's see how many

beakers Chris can down

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while I try to override his brain

and control his muscles.

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XAND LAUGHS

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Chris is struggling.

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BUZZER SOUNDS

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You can't... You can't...

You cannot let go!

Just put it down.

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So, we know what

makes your muscles move,

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but how do your muscles

make your bones move?

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Well, it wouldn't happen

without your tendons.

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To show you how tendons

move your bones,

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I have invented this - a model arm

made of space-age materials!

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Xand, this is something

made of cardboard, a bit of string

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and some straws.

They use

all of those things in space!

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Now, this is the muscle,

this is the bone,

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and this piece of string is the

tendon connecting the two of them.

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Now, when I take this balloon,

put it in here and inflate it...

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Wow!

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When Xand inflates the balloon,

it's like my muscle contracting,

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and it pulls on the tendon

and moves the bone.

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Your tendons have to be strong

so that they can lift

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and move your bones

and anything else you're carrying.

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The strongest and thickest tendon

in your body is the Achilles tendon.

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And it... What have

I told you about shoes in the lab?

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I thought everyone would like to see

my Achilles tendon! It's right here.

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It connects my calf to my heel.

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Do you know, Chris,

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your Achilles tendon is meant to be

stronger than steel?

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It's just a shame we don't have any

way to test that in the lab.

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Well, Xand, I actually have the

perfect experiment for this,

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but we do need to head outside.

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And you're going to need this.

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Meet...

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Let's go find out how it works.

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This is a horse's tendon.

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These are scientists from

Queen Mary University of London.

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They're attaching these

clamps to the horse tendon, which is

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then frozen with dry ice.

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Let's test how strong this

tendon really is,

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but maybe we should start with

something small.

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Well, what about Zahara?

She's right here!

Oh, hi, Zahara!

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Hi, Chris.

Well, sounds like it's

time for some tendon-powered flight!

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Get in the bag! Come on.

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Are you strapped in?

Yep.

Helmet on?

Yes.

Great stuff.

Good luck!

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We'll see you when you land!

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Yeah.

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Remember, Zahara's body weight

is being supported

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only by the horse tendon,

but will it hold?

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Three, two, one...

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BOTH:

Liftoff!

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You're airborne!

Whoo!

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That one small tendon is holding

the full weight of Sahara.

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That's amazing.

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We're going to push this horse's

tendon to the limit and see if it's

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strong enough to take the weight

of not one of us but both of us!

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You guys are crazy!

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BOTH:

Three, two, one... Liftoff!

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Whoa!

Whoa!

We're off!

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This is incredible! The only thing

holding us up is a horse tendon!

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Wow! That one little tendon is

taking our combined weight of 180kg.

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It really is as strong as steel.

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See you next time. Bye!

Bye!

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Bye.

Bye.

Bye!

Bye.

Bye!

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NO SOUND

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