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. 2014 Feb 20;9(2):e89133. doi: 10.1371/journal.pone.0089133

Figure 14. Normal rotation and integration of the outflow tract (cardiac outlet) into the fused atrioventricular (AV) cushion in the final stages of looping and septal alignment.

Figure 14

Upper panels are cross section dorsal views showing left and right AV canals, aorta and pulmonary trunks (Ao & P). Lower panels are depictions of the sagittal view. The dotted line indicates approximate section shown in upper panels. The myocardium (*inner curvature) between the outlet and AV cushion is removed and myocardial cells invade the proximal outlet cushion as in E12.5. P-pulmonary artery, Ao-aorta, LAV & RAV, left & right atrioventricular canals, M-mitral valve, T-tricuspid valve.