molecular mechaniism of contraction

  • Stimultion of muscle cells.
  • cross bridge
  • filament sliding
  • ATPase activity of Myosin head
  • Troponin-Tropomyosin action
  • Attachment and detachment of the myosin head
  • calcium and Mg+2 is required for contraction
  • Myosin head ATPase activity is Ca+ dependent
  • Release of Ca+ from sarcoplasmic reticulum

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