[Elastic].

Since the ventricular myocardium is made up of a band of myocardial fibres which are configured into a complicated three-dimensional helical way, some time spent handling and observing this teaching model can help any cardiologist involved in imaging methods to understand and interpret the structural basis of the motion patterns of the heart. We concede that we need the cooperation of all disciplines to elucidate functional understanding of the myocardial band structure described above.