Heart and lungs

We have been learning about the heart and lungs. We started to look at how they work together by acting out the movement of blood around our body.

When we breathe in we get oxygen from the air around us.

The heart pumps blood filled with oxygen around our bodies.

The oxygen is taken to our muscles in our red blood cells.

Our muscles use up the oxygen in the blood.

 The blood goes back to the heart to get more oxygen.
The blood can then go back to the muscles.