Coloured scanning electron micrograph (SEM) Goby fish skeletal muscle (Awaous guamensis). Skeletal muscle fibres showing exposed intracellular actin myosin filaments. The muscle fibre was cut perpendicular to its length to expose the intracellular actin myosin filaments. Note the presence of the repetitive Z line in the fibres. Magnification: x600 when shortest axis printed at 25 millimetres.
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