Name: 心臓を探る-循環器系! (Exploring the Heart - The Circulatory System!)
Uploaded: 2021-01-14T06:36:28.000Z
Duration: 6 min 12 s
Description: VoiceTubeの動画で発音を聞きながら英語表現を覚えよう！学べる英語：

法助動詞 A2

未来形

I have a very important job inside your body

My job is so important that you'll thank me for it later!

Without your heart I couldn't do a thing!

You see, I'm like a little delivery truck in your body.

I pick up and drop things off all the time.

This system is made of your heart and blood vessels

that carry your blood to different areas of your body.

They are made up of arteries that take oxygen

Your heart is the most important muscle in your body.

It moves by itself and even though you can hardly feel it,

Sit very still and put your hand on your chest.

When your heart moves it's called a "heartbeat".

Your heart makes at least 100,000 heartbeats every day.

When your heart beats it pulls blood into it

and take them to different places in your body.

There are lots of red blood cells just like me

doing the same thing in your body all the time.

Here's me at the start of my little journey.

I just got back from dropping off some things

I need to get some more speed to do more deliveries

so I ride your bloodstream into your heart.

Going through the heart is easy because the heart

has special rooms and doors that only open one way.

Right now I am entering the right side of the heart.

I go through the first room called the "right atrium",

through the first door called the "tricuspid valve",

and through the second room called the "right ventricle",

and through the second door called the pulmonary valve.

to squeeze the blood in these rooms into the next area.

It pushes the blood through it and into the arteries

(like tunnels) that lead to other parts of the body.

Now I need to go and pick up the things I need to deliver.

I need to pick up a little oxygen molecule

and then I pick it up and take it to where it's needed.

It seems like it would be tricky to pick up the oxygen,

but the lungs really help me with that job.

You see, here in the body we all work together

and co-operate to keep everything running smoothly.

(I'm not really this big, it's just easier to see me this way)

... and I get really close to the sides of my little tunnel...

... the oxygen that is sort of floating out of the walls nearby

When enough of it has hopped on and I can't hold anymore

then I'm ready to go back to the heart for another push.

This all happens so fast that it's even faster than blinking!

So now this time I need to go in the other side of the heart.

This side is for all of us red blood cells

The heart pushes us a little farther this time

because some of us have a very long trip.

I go in through the first room called the "left atrium"

and into the "left ventricle" room to get my big push.

Here I am making a delivery in the foot area!

All I have to do is draw near to the tunnel wall

and the oxygen will just jump out of my truck

字幕リスト動画再生

心臓を探る-循環器系! (Exploring the Heart - The Circulatory System!)

sort

eventually

grab

journey