Khan Academy Static

Once you’ve learned about the PV loop, a natural question arises - Does it ever change shape? It turns out that there are precisely three things that can change the shape of the loop: 1. Preload, 2. Afterload, and 3. Contractility. That’s it! The tricky part comes when you try to change one and you realize that the body begins to change the other two as well as a natural consequence. In order to simplify, you’ll find that PV loops are sometimes even described as PV boxes. You’ll get to learn about PV loops, PV boxes, and even play around with them yourself in this tutorial!

10962_Getting_Ea_arterial_elastance_from_the_PV_loop.html

10961_What_is_contractility_.html

10957_What_is_preload_.html

10965_Stroke_work_in_PV_loops_and_boxes.html

10964_Arterial_elastance_Ea_and_preload.html

10960_Reimagine_the_pressure_volume_relationship.html

10963_Arterial_elastance_Ea_and_afterload.html

10959_Increasing_the_heart_s_force_of_contraction.html

10966_Contractility_Ea_and_preload_effects_on_PV_boxes.html

10958_What_is_afterload_.html