What Do We Know About Heart Models?

by tenron on Jun 21, 2022

The heart model is a simulated medical human body model. It is an adult heart model. The model is in a diastolic state. It is placed on a stent and can be rotated horizontally. Below the coronary sulcus, a section of the anterior wall of the ventricle is taken to show the internal structure of the left and right ventricles. The epicardium has been removed to show the direction of the myocardial fibers and the heart vortex. The heart model is used in middle school physiology, health, and medical schools. It is used as an intuitive teaching aid when explaining the structure of the heart. Help students understand the external shape and internal structure of the heart, as well as the relationship between the large blood vessels entering and leaving the heart and blood circulation.

Heart Model Structure:

1. Make two sections, one is taken along the root of the pulmonary artery to expose the internal structure of the left and right atrium, the other is taken along the lower part of the coronary sulcus to be taken as a section of the anterior wall of the ventricle, showing the internal structure of the left and right ventricles, the epicardium has been removed, showing the direction of myocardial fibers and Heart Vortex.

2. The outline part shows the coronary sulcus, and the top of the sulcus is the bottom of the heart, including the atrium, the atrial appendage, and the great blood vessels that enter and exit the heart. The anterior sulcus of the anterior and posterior ventricles is the boundary between the left and right ventricles. The major blood vessels that enter and exit the heart are the superior and inferior vena cava, the pulmonary vein, the pulmonary artery, the aorta, and three blood vessels from the aortic arch. (From right to left is the brachiocephalic trunk, right common carotid artery, left subclavian artery), the blood vessels that nourish the heart include left and right coronary arteries, small cardiac veins, cardiac veins, great cardiac veins and coronary sinus.

3. The internal structure mainly shows four hearts:

A: Right atrium: shows the openings of the superior tricuspid valve, inferior vena cava and coronary sinus at the border of the right atrioventricular orifice of the pectineus muscle of the right atrial appendage.

B: Right ventricle: showing the three semilunar valves of the pulmonary artery at the outlet of the pulmonary artery, the chordae tendineae, the papillary muscle and the septum.

C: Left atrium: showing the pectinate muscle of the left atrial appendage, the openings of the four pulmonary veins, and the mitral valve at the edge of the left atrioventricular orifice.

D: Left ventricle: showing the three aortic lunar valves at the outlet of the aorta and the outlet of the coronary arteries, the chordae tendineae, the sarcoid and the papillary muscles.

4. There is an atrial septum between the left and right atria, with an egg garden fossa on it, and a ventricular septum between the left and right ventricles. The membranous part and the muscular part are shown on the septum.

This life-size heart model allows a very easy identification of all anatomical structures in the human heart and is a perfect tool for both teaching or demonstrating. The front heart wall of this heart model is detachable to reveal the chambers and valves inside.