a-short-review-of-histology

Cardiac Muscle Cells: Continued

Look closely and identify some dense bands (arrowed)
These are the intercalated discs which connect adjacent cardiac muscle cells
Notice that the cardiac muscle cells have large "sausage" shaped euchromatic (pale staining) nuclei
There are also many small densely stained nuclei
These densely stained nuclei are mostly the nuclei of endothelial cells lining the capillaries which lie adjacent to the cardiac muscle cells

This micrograph shows an area of myocardium. Numerous cardiac muscle cells are cut in longitudinal section

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