Here’s a cool rhyme so we can show
how rhythm helps us learn how the blood does flow.
The heart pumps the blood to the body up and down,
it’s a big old muscle that moves it all around.
‘Pulmonary’ circulation goes out to the lungs,
CO2 goes out and in the oxygen comes.
And then it’s ‘systematic’ that brings that O2
‘Round the rest of the body to let it pass through.
It goes out from the heart through the arteries,
Vessels in the thousands end at capillaries.
Once the O2 is used up in the flow,
The veins bring it back to the heart, and so it goes.
Arteries are red and the veins are all blue.
It’s easy seeing differences between those two.
And so we have the heart, blood, and vessels for the list,
as the elements that make up the circulatory system!
