Smooth Musculature. Contraction of Smooth Muscle Cells

  • Radivoj V. Krstić


It has already been indicated that three types of microfibril occur in the sarcoplasm of muscle cells. Whereas actin (1) and myosin (2) myofilaments are responsible for shortening of the cell, the intermediate desmin microfilaments (3) and dense bodies (4) form an intracellular network which ensures the simultaneous contraction of the whole muscle cell. It should not be forgotten here that the actin myofilaments are also attached to the dense bodies.


Muscle Cell Smooth Muscle Cell Dense Body Contractile Mechanism Isotonic Contraction 
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Copyright information

© Springer-Verlag Berlin Heidelberg 1985

Authors and Affiliations

  • Radivoj V. Krstić
    • 1
  1. 1.Institut d’Histologie et d’EmbryologieUniversité de LausanneLausanneSwitzerland

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