Reduced and transparent heart with impulse conduction system

Anatomically speaking, the following are emphasized on the model:



1) The impulse line system

2) Coronary arteries and coronary veins

3) The large vessels that carry blood to and from the heart



Although it also illustrates the chambers of the heart, they appear less clear. Smaller anatomical structures are not included.



The impulse conduction system is shown in an extremely educational way, so that you can see the process from the sinus node onwards through the other important structures such as the Atrioventricular node, bundle of His, crura and Purkinje fibers.



The model primarily shows the large coronary arteries and the coronary vein. Arteries are illustrated in red and veins in blue.



The right coronary artery, called arteria coronaria dexter (or RCA) runs right around the heart to the back surface and gives off the ramus interventricularis posterior, which is also seen. The left heart artery is called arteria coronaryia sinister. Its course to the left is also seen. It divides into the two large vessels called ramus interventricularis anterior (or LAD) and ramus circumflexus (or CX).



Most of the venous blood collects in the coronary vein (sinus coronarius), which empties into the right atrium. Smaller veins are also seen.



The large vessels that carry blood to and from the heart include the aorta (body artery), v. cava superior (upper vena cava), truncus pulmonalis (pulmonary artery/pulmonary artery). You can also see the openings to the v. cava inferior (lower vena cava) and vv. pulmonales (pulmonary veins).