Lesson video

Hi everyone, my name is Miss Hummel and together we'll be answering the question; how is oxygen transported around our bodies.

In this lesson, we will learn about the circulatory system.

We will also focus on the contents of blood, the types of blood vessels, and how the heart works.

The lesson will follow this structure.

First, we will discuss what the circulatory system is.

Then we will learn about what we can find in our blood.

We will then discuss what blood vessels are.

And finally, we will discuss how the heart functions.

In this lesson, you will need an exercise book or paper, a pencil or pen, a coloured pencil or pen, and a ruler.

If you haven't got those things, pause the video now and go get them.

Here are star words which are the most important words of our lesson.

I'm going to save them and ask you to repeat them after me.

When I point at myself, it will be my turn and when I point at you it will be your turn.

Heart, blood, blood vessels, oxygen, carbon dioxide, cells, platelets, lungs, veins, arteries, circulatory, and that's it, well done.

We will begin by discussing what we mean when we say the words circulatory system.

Our circulatory system is formed out of three parts, get three fingers up ready for the three parts.

We've got the heart, blood, and blood vessels, its format of the heart, blood, blood vessels.

The heart keeps all the blood in the circulatory system flowing.

The blood travels through the network of blood vessels everywhere that is needed in your body.

It carries useful material, and it removes waste products.

And blood vessels are like tubes which help blood be transported throughout the body.

Here is a thinking task for you.

What are the three parts that the circulatory system is formed of? Pause the video to complete this task.

You can resume once you're finished.

You should have said, the heart, the blood and blood vessels.

Now, we've got a video here that I would advise you to watch.

It's in your worksheet and it's going to help you understand the circulatory system.

Now, Oak National Academy are not responsible for third-party content, and the video may be blocked in a school network.

The human circulatory system is a group of organs and vessels which transports blood around the body.

Now that is our definition that we need to know for today.

Please write it down in your notebook or paper to help you remember it.

The human circulatory system is a group of organs and vessels which transports blood around the body.

Without it, your cells would never receive the oxygen and the food that they need to function.

Now, point at the oxygen on your screen.

Point at the food on your screen.

And point out yourselves on the screen.

Well done.

Now, your heart is busy beating all the time in order to pump blood through your arteries and keep it in circulation.

Pretend like your heart is beating, you feeling your heart beating.

Now, once it has dropped off the food and the oxygen, the blood is transported back to your heart through your veins.

The lungs are also a part of the circulatory system.

Have a think.

Why do you think the lungs play a role in the circulatory system? The blood is pumped to the lungs where it drops off waste carbon dioxide and it picks up fresh oxygen before going around the body again.

I would now like you to fill in the gaps to the passage below.

The human circulatory system is a group of hmm and vessels which transports hmm around the body.

Without it, your hmm would never receive the hmm and food that they need to function.

Your hmm is busy beating all the time in order to pump hmm through your arteries and keep it in hmm.

Once it has dropped off the food and oxygen the blood is transported back to your heart through your hmm.

The lungs are also a part of the hmm system, blood is pumped to the hmm where drops off waste, hmm dioxide, and picks up fresh hmm, before going around the body again.

There are two words that you're going to be repeating there.

So that's my hint for you.

Pause the video to complete the task, you can resume it once you're finished.

If you are stuck, wait around and I might show you a little bit of help.

So if you're feeling stuck, here are some words at the bottom, which might help you out.

Those are the words that you're going to be putting into your paragraph.

Now, get ready to mark your work.

The human circulatory system is a group of organs and vessels which transports blood around the body.

Without it your cells would never receive the oxygen and the food that they need to function.

So you should have said oxygen there.

So, so far we've had organs, blood cells, oxygen.

Your heart is busy beating all the time in order to pump blood through your arteries and keep it in circulation.

So in that sentence, we had heart, blood and circulation.

Once it has dropped off the food and oxygen the blood is transported back to your heart through your veins.

That's our next word.

The lungs are also part of the circulatory system is what we were looking for their.

Blood is pumped to the lungs, where it drops off waste, carbon dioxide and picks up fresh oxygen before going around the body again.

What were the two words that I repeated more, I repeated twice.

We repeated the word blood and we repeated the word oxygen.

Now, we will discuss what is in blood.

Here are the functions of blood to start us off.

It transports material around the body, which includes oxygen, carbon dioxide, and nutrients.

And it also protects against disease.

Red blood cells like you can see in the picture, transport oxygen.

So my background, those blood cells are transporting oxygen.

White blood cells protect against disease.

These are super important for your immune system.

Blood platelets help the blood to clot and repair a cut.

This is the structure that will help a scab if we have been hurt.

Finally, plasma, is a yellowish-looking liquid like you can see there that carries all of these cells as the liquid running through here, which is transporting those cells.

I would now like you to complete this table.

On one side, we have the component of blood.

The first one is blank for you to fill in.

The second is platelets.

The third is blank for you to fill in.

And the fourth is red blood cells.

On the right-hand side, we have function.

First one is, to help protect against disease.

Second one is blank for you to fill in.

Third one is a liquid that carries blood cells and other nutrients.

And fourth one, again is blank for you to fill in.

Pause the video now to complete the task and you can resume once you're finished.

Now, get ready to mark your work.

It should have been white blood cells, which helped protect against disease.

Platelets help the blood to clot and repair a cut.

Plasma is a liquid that carries blood cells and other nutrients and red blood cells transport oxygen.

In this next part of the lesson, let's focus on blood vessels and what they are.

Blood vessels are series of tubes inside your body.

They move blood to and from the heart.

And basically, in a blood vessel right now is some red blood cells.

Arteries; they carry the blood away from the heart and they transport the oxygen and the nutrients to the cell in our body.

Again, away from the heart but they've also got blood which has been oxygenated.

Veins, however, take the blood back to the heart with carbon dioxide where it pumps it to the lungs to pick up more oxygen.

So the veins are heading back to the heart and the arteries are leaving the heart.

Arteries are leaving with oxygen, veins are coming back with carbon dioxide.

Now, I would like you to complete this thinking task.

What's the difference between arteries and veins? Do they have any similarities? Pause the video to complete the task and you may resume once you're finished.

Getting ready to mark your work.

So you might have said that arteries transport oxygen and veins transport carbon dioxide.

And the similarity you may have given is that they both transport blood in the same way.

Finally, we're going to discuss one of our most important organs, the heart.

Our heart is a strong muscle, which keeps all blood in the circulatory system flowing.

First, your heart pumps blood with carbon dioxide to your lungs.

It pumps blood with what? With carbon dioxide to your lungs.

The blood picks up oxygen from the air that you have breathed in and exhales the carbon dioxide waste.

The blood which is now carrying oxygen travels back to your heart.

The heart gives the blood a second push.

Now it's sent all around the body to different organs and tissues.

Finally, the blood travels back to the heart and it all begins again.

We're going to go through it one more time.

So first, your heart pumps blood with carbon dioxide to your lungs.

The lungs are then picking up that oxygen from the air and they're exhaling the carbon dioxide waste.

The blood which now has oxygen travels back to your heart.

Your heart is pushing it out for a second time.

And now it's sent all around the body to different organs and tissues.

And finally, the blood travels back to the heart and it all begins again.

So finally, as your last task of the lesson, I would like you to describe the steps of the circulatory system.

The last one has been done for you and says finally the blood travels back to the heart with carbon dioxide.

And it all begins again.

You can use the sentence starters to help you.

Now, pause the video to complete the task.

You can resume once you finished.

Get ready to mark your work.

So first, you should have written that the heart pumps blood with carbon dioxide to your lungs.

The blood picks up oxygen from the air that you've breathed in and it exhales the carbon dioxide waste.

The blood, second one, so the blood which is now carrying oxygen travels back to your heart.

Thirdly, we've got the heart giving the blood a second push.

And now it's sent all around the body to different organs and tissues.

And the last part of our story is that the blood travels back to the heart and it all begins again.

Hopefully, you were able to describe that whole process.

We have now finished our lesson and it is time for you to complete your exit quiz.

You need to exit the video and complete the quiz to test your knowledge and understanding of this lesson.

I hope you enjoyed the lesson, bye.