Our heart working

Do you want to see how our valves work? Click on the following link to see the animation: 

Heart valves working

See here an animation about the circulatory system to understand better how it works
Circulatory system animation

Let's see the effects that different activities have in our heart playing Ruby's game!
When you finish playing, do the quiz to see how much you have learnt.
Keeping healthy -Ruby's game