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1. The model shapes from the adult heart. The wall of left and right atria and cut noodles along pulmonary artery can be knock- down.
2. Along the bottom of pulmonary artery do the cut showing the inner structure of left atria, pulmonary artery and the main trunk of semi-lunar valve. Along the ventricle do slanting cut showing the inner structure of right ventricle.
2.1 The right atria show the stomata vena cava, lower vena cava valve, the stomata of coronary sinus, the valve of coronary sinus, and the stomata of the right atria and ventricle. And left atria shows the stomata of the left and right lungs vein and the stomata of the left atria and ventricle.
2.2 The right ventricle shows the tricuspid valve arterial taper, tendon, nipple muscle, the valve of lungs artery; left ventricle shows mitral valve, nipple muscle and the main truck valve.
2.3 It shows the distance of the atria and ventricle.
3. It shows the surface of heart and involved blood vessel and branch.
3.1It shows coronary groove, the ventricle groove; and shows atria, myocardium fiber, fat and artery ligament and so on.
3.2 It shows the left and right coronary artery and branch; coronary sinus and branch; the main artery and branch caused by the main artery; vena cava and branch; lungs vein and lungs artery
