But the most common uses for HGH are not FDA-approved. Some people use the hormone, along with other performance-enhancing drugs such as anabolic steroids in an attempt to build muscle and improve athletic performance. Yet HGH's effect on athletic performance is unknown.
Right ventricle to coronary artery connections (fistulae) in pulmonary atresia with intact ventricular septum: Clinical and histopathological correlations Right ventricle to coronary artery connections (fistulae) in pulmonary atresia with intact...
In general, the atrioventricular node is located in the so-called floor of the right atrium, over the muscular part of the interventricular septum, inferior to the membranous septum: i.e., within the triangle of Koch, which is bordered by the coronary sinus, the tricuspid valve annulus along the septal leaflet, and the tendon of Todaro (Figure 2).