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Figure 5: Volume-rendered virtual dissection images viewed from the base of the heart. The apex rotates leftward from the panel (a-c). Finger-like orifice of the left atrial appendage with smooth atrioventricular vestibule around the mitral valvar orifice is noted (a). On the contrary, in the right atrial appendage, the presence of pectinate muscles (red dotted curve) extending widely around the muscular atrioventricular vestibule of the tricuspid valvar orifice is noted (b and c)

Figure 5: Volume-rendered virtual dissection images viewed from the base of the heart. The apex rotates leftward from the panel (a-c). Finger-like orifice of the left atrial appendage with smooth atrioventricular vestibule around the mitral valvar orifice is noted (a). On the contrary, in the right atrial appendage, the presence of pectinate muscles (red dotted curve) extending widely around the muscular atrioventricular vestibule of the tricuspid valvar orifice is noted (b and c)