Fig. 6.
Hematoxylin/eosin (H&E) staining of short-axis slices of the LVFW and septum. The zoomed-in view (boxed area) on the right side of each image illustrates the transmural position of circumferentially orientated cardiomyocytes, i.e., with 0° αh. The transmural position of circumferentially orientated cardiomyocytes in the LVFW remained unchanged of all hearts (left). However, in the septum it progressively shifted toward the RV endocardial (Endo) surface from P1 to P14 (right). Epi, epicardial.