Heart anatomical 4x magnification simulator 3 parts

■ The exterior of the simulator shows the coronal sulcus, with the upper part of the sulcus representing the base of the heart, including the atrium, auricle, and large blood vessels entering and exiting the heart;The anterior and posterior interventricular sulcus serve as the boundary between the left and right ventricles. The major blood vessels that exit the heart include the superior and inferior vena cava, pulmonary vein, pulmonary artery, aorta, and three blood vessels originating from the aortic arch (from right to left is the brachiocephalic trunk, right common carotid artery, and left subclavian artery). The blood vessels that nourish the heart include the left and right coronary arteries;
The internal structure of the small cardiac vein, the large cardiac vein, and the coronary sinus shows four cardiac chambers. In addition, there is an atrial septum between the left and right atria, an oval fossa above, a ventricular septum between the left and right ventricles, and the membranous and muscular parts above the septum.