Anatomically, the model shows the most important anatomical structures of the heart. It shows the heart's 4 chambers, the auricles, the heart's blood supply (arteries and veins), the 4 valves based on the sac valve and mitral valve system, the beginning of the blood vessels that carry blood to and from the heart and a hint that the heart's structure consists of 3 different layers (endo-, myo- and pericardium). The different colors on the model symbolize the different tissues (fat, muscle, etc.). The heart's impulse conduction system is not seen.
Furthermore, extra blood vessels are seen between the aorta (body artery) and coronary arteries. They thus show the result after the operation, where veins from the leg and/arteries from the forearm act as "bypasses" around narrowed or closed coronary arteries.
