Figure 4.

Solitary ostium in aorta. Transversal histological section of the aortic valve of a C57BL/6 mouse stained with resorcin‐fuchsin. This specimen has a solitary, high take‐off, coronary ostium in aorta. The section corresponds to the level where the single coronary trunk divides into a right (RC) and a left (LC) coronary artery. The right coronary artery courses the wall of the right ventricle. The left coronary artery runs towards the muscular outlet ventricular septum. Ao, aortic root; Pu, pulmonary root; RA, right atrium. Scale bar: 200 μm. (Reprinted from Fernández et al. 2008.)