DENNIS KUNKEL MICROSCOPY / SCIENCE PHOTO LIBRARY DENNIS KUNKEL MICROSCOPY / SCIENCE PHOTO LIBRARY
C2 skeletal muscle cells (myotubes) developing in culture, coloured scanning electron micrograph (SEM). Myogenesis is the formation of muscular tissue, especially in embryonic development. Muscle fibres form from the fusion of myoblasts into multi-nucleated fibres called myotubes. In the early development of an embryo these myoblasts will undergo multiple divisions. The second stage involves the alignment of the myoblasts into the myotubes. The third stage is the actual cell fusion of myotubes in to muscle fibres. Magnification: x240 when shortest axis printed at 25 millimetres.
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