Material Detail

"Khan Academy - Heart Muscle Contraction" icon

Khan Academy - Heart Muscle Contraction

This Khan Academy tutorial is on heart muscle contraction.  It is one of several tutorials on circulatory system physiology.  The target population for these learning activites are nursing students. The topics that are covered are:

  • How tropomyosin and tropinin regulate muscle contraction
  • Three typs of muscles
  • health cells up close
  • Myosin and actin
  • Calciumm puts myosin to work
  • Sympathetic nerves affect myosin activity
  • Why doesn't the heart rip?



  • Editor Reviews
  • User Rating
  • Comments
  • Learning Exercises
  • Bookmark Collections
  • Course ePortfolios
  • Accessibility Info

More about this material


Log in to participate in the discussions or sign up if you are not already a MERLOT member.