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Muscle contraction HTML5


This animation presents the molecular mechanisms of muscle contraction.

Learning goals

  • To understand the molecular mechanisms involved in muscle contraction.
  • To understand muscle contraction at the levels of both the sarcomere and the entire muscle.
  • To clarify the principal stages of muscle contraction.
  • To clarify the roles of myofilaments of actin and myosin.
  • To understand the role of ATP in muscle contraction.
  • To understand how changes in the conformation  of myosin permits the sliding of myofilaments.

Learn more

Locomotion is enabled by the contraction of skeletal muscles.  A skeletal muscle is made up of  bundles, with each bundle made up of  a collection of muscle cells called muscle fibers. Each such…

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