Striated Muscle Fiber. Myofibrils Royalty-Free Stock Photo

Light micrograph of cross-sectioned skeletal muscle stained with Mallory's phosphotungstic acid haematoxylin (PTAH). Each oval or polygonal structure corresponds to a cross-sectioned myocyte. Inside each one there is a dotted pattern that occupies the entire cytoplasm that corresponds to the set of myofibrils. The nuclei, which are poorly stained with this technique, are displaced to the periphery