Figure 105a

Four-chamber view of heart showing morphologic differences between the four chambers.
The right atrium (RA) is more trabeculated than the left (LA), and the right ventricle (RV) is more heavily and coarsely trabeculated compared to the left ventricle (LV).
AS= atrial septum; MV= mitral valve; TV= tricuspid valve; VS= ventricular septum.