Preload and Afterload
Find out exactly what preload and afterload mean, and why most of us use a handy shortcut to guess-timating what they are!

Videos

  1. Why Doesn't the Heart Rip? Why Doesn't the Heart Rip?
  2. What is Preload? What is Preload?
  3. Preload and Pressure Preload and Pressure
  4. Preload Stretches out the Heart Cells Preload Stretches out the Heart Cells
  5. Frank-Starling Mechanism Frank-Starling Mechanism
  6. Sarcomere length-tension relationship Sarcomere length-tension relationship
  7. Active contraction vs. passive recoil Active contraction vs. passive recoil
  8. What is afterload? What is afterload?
  9. Increasing the Heart's Force of Contraction Increasing the Heart's Force of Contraction