This is the normal appearance of myocardial fibers in longitudinal section. Note the central nuclei and the syncytial arrangement of the fibers, some of which have pale pink intercalated disks.

• 这是正常的心肌纤维的纵切面图。图示可见细胞核位于心肌纤维的中央，有时还可见淡粉染的心肌闰盘。