Well here we are ladies and gentlemen, in the heart, the powerhouse of the circulatory system, the hardest working muscle in the entire human body!
He’s looking very strong today… and here comes the blood cell… I think we’re ready…
AND HE’S OFF!
Look at that extraordinary pumping power!
He’s off into the lungs. Incredible! He has picked up oxygen, and he’s coming back! He’s coming back!
We’re ready for another pump, I think this is the big one, here it comes!
Oh my goodness LOOK AT THAT! What an unbelievable pump! Our friend the blood cell is out of sight!
He’s been sent swooshing around the entire body along with trillions of others!
This heart just never stops, he's pumping away 24/7. Just absolutely incredible, quite extraordinary…
Your heart is a very strong muscle and plays an important part in being healthy. It keeps all the blood in your circulatory system flowing.
- Your heart first pumps blood to your lungs. Here, the blood picks up oxygen from the air that you have breathed in.
- The blood (carrying oxygen) then travels back to your heart.
- The heart gives the blood a second push. This time, it's sent all around the body to the various organs and tissues.
- The blood travels back to the heart and it all begins again.
More on Body systems
Find out more by working through a topic
- count24 of 24
- count1 of 24
- count2 of 24
- count3 of 24
