Model-Pumping-Heart-Learning-Resources-LER3535-P-This-Pumping-Heart-Model-from-Learning-Resources-gives-you-an-easy-to-use-means-of-demonstrating-the-basic-heart-and-blood-flow-functions-P-P-Using-a-simple-hand-pump-you-can-create-a-memorable-exploration-of-how-the-heart-and-lungs-work-Add-coloured-liquid-to-the-unit-to-illustrate-oxygen-exchange-P-P-The-model-includes-clearly-labelled-heart-chambers-main-artery-veins-and-lungs-P-Learning-Resources-Pumping-Heart-Model-300mm-x