Heart model MP1710

for teaching

This 3D printed specimen demonstrates the external anatomy of the heart alongside the distal trachea, carina, and primary bronchi in the posterior mediastinum. The relationship of these structures to the great vessels and left atrium is clearly shown, with the pericardial reflections marking the transverse and oblique pericardial sinuses. Heart Chambers and Valves An anterior window has been dissected into the right atrium and base of the auricle, exposing the right atrioventricular (tricuspid) valve and passage into the right ventricle. The pulmonary trunk has been removed to reveal the open pulmonary semilunar valves. Coronary Arteries and Sinus Both right and left coronary arteries with their named branches are visible. The posterior interventricular artery arises from the right coronary, while the circumflex artery is displayed in the coronary groove via a sectioned left auricle. The coronary sinus is retained inferior to the left atrium, although other cardiac veins have been removed. Great Vessels The arch of the aorta is intact, showing the origins of the brachiocephalic trunk, left common carotid, and left subclavian artery. Adjacent to the aorta, the termination of the left and right brachiocephalic veins and azygos vein into the superior vena cava is preserved, illustrating the venous return to the heart.