![This is blank.](https://digitalhistology.org/wp-content/themes/histology-unified/imgs/trans.png)
Myocardium
Longitudinal sections of cardiac muscle fibers in the myocardium display intercalated discs and myobrils. 400x, 1000x
![Muscle fibers <p>Longitudinal sections of cardiac muscle fibers in the myocardium display intercalated discs and myobrils. 400x, 1000x</p>](https://digitalhistology.org/wp-content/uploads/2017/07/Or.CV_.H-5-1-ping.png)
Muscle fibers
Longitudinal sections of cardiac muscle fibers in the myocardium display intercalated discs and myobrils. 400x, 1000x
![Nuclei <p>Longitudinal sections of cardiac muscle fibers in the myocardium display intercalated discs and myobrils. 400x, 1000x</p>](https://digitalhistology.org/wp-content/uploads/2017/07/Or.CV_.H-5-2-ping.png)
Nuclei
Longitudinal sections of cardiac muscle fibers in the myocardium display intercalated discs and myobrils. 400x, 1000x
![Myofibrils <p>Longitudinal sections of cardiac muscle fibers in the myocardium display intercalated discs and myobrils. 400x, 1000x</p>](https://digitalhistology.org/wp-content/uploads/2017/07/Or.CV_.H-5-3-ping.png)
Myofibrils
Longitudinal sections of cardiac muscle fibers in the myocardium display intercalated discs and myobrils. 400x, 1000x
![Intercalated discs <p>Longitudinal sections of cardiac muscle fibers in the myocardium display intercalated discs and myobrils. 400x, 1000x</p>](https://digitalhistology.org/wp-content/uploads/2017/07/Or.CV_.H-5-4-ping.png)
Intercalated discs
Longitudinal sections of cardiac muscle fibers in the myocardium display intercalated discs and myobrils. 400x, 1000x
![Cross striations <p>Longitudinal sections of cardiac muscle fibers in the myocardium display intercalated discs and myobrils. 400x, 1000x</p>](https://digitalhistology.org/wp-content/uploads/2017/07/Or.CV_.H-5-5-ping.png)
Cross striations
Longitudinal sections of cardiac muscle fibers in the myocardium display intercalated discs and myobrils. 400x, 1000x
![Capillaries <p>Longitudinal sections of cardiac muscle fibers in the myocardium display intercalated discs and myobrils. 400x, 1000x</p>](https://digitalhistology.org/wp-content/uploads/2017/07/Or.CV_.H-5-6-ping.png)
Capillaries
Longitudinal sections of cardiac muscle fibers in the myocardium display intercalated discs and myobrils. 400x, 1000x