Have you ever had difficulty explaining to your students what is the difference between the propagation of a pressure wave and the actual movement of blood? In Neuromon's CardioVascularSimulationApp 1.14 we have incorporated the animation of a single stroke volume being pushed forward along the arterial tree. The model demonstrates that the stroke volume moves considerably slower than the blood pressure wave. The effect of arterial acceleration can easily be demonstrated by turning it off or on.