Catalyst University
What is the Frank-Starling Mechanism in Cardiophysiology?
What is the Frank-Starling Mechanism? We will discuss this by talking about the effects of preload, left ventricular stretch and elastic recoil, and changes in stroke volume.
Khan Academy
Khan Academy: Preload and Afterload: Frank Starling Mechanism
Carefully follow five different preload scenarios to see how each one will have a different effect on how actin and myosin line up. Rishi is a pediatric infectious disease physician and works at Khan Academy. [14:18]
Khan Academy
Khan Academy: Preload and Afterload: Preload Stretches Out the Heart Cells
Find out why stretching a heart cell in diastole affects how forcefully it contracts in systole. Rishi is a pediatric infectious disease physician and works at Khan Academy. [12:41]
Khan Academy
Khan Academy: Changing the Pv Loop: Arterial Elastance (Ea) and Preload
Understand how EA is affected by changes in preload, and in turn, how the PV loop can shift. Rishi is a pediatric infectious disease physician and works at Khan Academy.
Khan Academy
Khan Academy: Pressure Volume Loops: What Is Preload?
Some say Preload = End-Diastolic Pressure, others say Preload = End-Diastolic Volume, so which one is it? Watch and find out! Rishi is a pediatric infectious disease physician and works at Khan Academy.
Khan Academy
Khan Academy: Preload and Afterload: Sarcomere Length Tension Relationship
Find out why the length of a sarcomere (in diastole) affects the amount of force that it can generate (in systole), and how that would look on a graph. Rishi is a pediatric infectious disease physician and works at Khan Academy. [8:50]