In this section of skeletal
muscle, most of the cross striations have been lost, leaving only longitudinal
striations. Numerous elongated nuclei, typical of skeletal muscle, can be seen
at the edge of the muscle fibers, where they are located just under the plasma
membrane. The elongated and darkly staining nuclei located external to the muscle
fibers belong to fibroblasts and capillary endothelial cells.
