B1 Intermediate US 137 Folder Collection
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[MUSIC PLAYING]
KidsHealth presents "How the Body Works,"
with Chloe and the Nurb.
[MUSIC PLAYING]
(SINGING) So you gotta, gotta, gotta, gotta, gotta
have a kidney or two.
[CHEERS AND APPLAUSE]
That was the Foggy Liver Boys with "Gotta Have
a Kidney or Two."
Next up is Chloe and the Nurb with a song that's
sure to put a big toothy grin on your face.
[MUSIC PLAYING]
(SINGING) Teeth, teeth, in my mouth, how
I love them north and south.
You need them when you speak and chew.
They help you when you're singing, too.
Like we often do.
Woo hoo!
Babies get their first teeth at 6 months old.
20 baby teeth is all their baby mouths can hold.
They usually have all 20 by the time they're 3.
They're your primary teeth.
At around 6 years those little teeth get loose.
Bigger, stronger teeth start pushing them out.
By 12 or 13, you'll have all 28 of your adult teeth.
So there are 28 permanent teeth in all-- eight
more than you had when you were small.
But you're not done yet.
You still have four more to go-- your wisdom teeth.
Wisdom teeth, wisdom teeth.
By 21, you'll probably have those wisdom teeth for 16
over head and 16 underneath.
It's all the teeth that anyone could ever need
and the only set you'll get.
Teeth, teeth, you've got all kinds.
You keep yours, and I'll keep mine.
Brush them at least twice a day, and floss them, too,
if you want them to stay.
Till you're old and gray.
Yee hee!
You've got different kinds of teeth, whatever your mood.
The front four incisors help you bite your food.
There's four on top and four on the bottom, too-- doo,
doobity-doo.
Next are your canines, the spiky teeth,
helping tear tough food whenever you eat.
Every once has four-- two on top and two beneath,
just like a doggy's teeth.
Premolars and molars are the ones that chew.
They crush, grind, and smash up all of that food.
Add some spit, and you're ready to swallow it down.
Let's chew, chew, chew.
Chew, chew, chew.
Those wisdom teeth not only come in slow.
Once they're there, they might just cause you woe.
You don't really need them, so your dentist can take them out.
Bye, bye.
Teeth, teeth, they live in your jaw.
They help you munch, bite, nibble, and gnaw.
Some folks wear braces to get their teeth aligned
so their teeth work better and their smile looks fine.
The white part we see on top is the crown, and below
that the roots stretch really far down.
The enamel outside is what makes them hard and bright
if you brush them right.
The pink stuff the tooth sits in is your gum.
The roots of the teeth are covered by cementum.
It helps anchor those teeth to your jaw
so they don't fall out.
Inside that is the dentin around the pulp.
The pulp's nerves send pain messages
to your brain that says this soup's too hot
or this ice is too cold.
Brr.
Sometimes a cavity's what's hurtin' you, though.
Acid from plaque burned a hole through the enamel, which
is why we brush at least twice a day and floss at least once.
Nurb, do I have to floss every tooth?
Just the ones you wanna keep.
Teeth, teeth, keep them in your mouth.
Brush them twice a day or more north and south.
Floss each end every day, too, to remove most food
and nasty plaque, too.
Teeth!
Teeth!
We love those teeth!
You said a mouthful.
[CHEERING AND APPLAUSE]
[WINGS FLAPPING]
[MUSIC PLAYING]
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How Your Teeth Work

137 Folder Collection
Amy.Lin published on March 19, 2019
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