Khan Academy on a Stick

Pressure in the left heart - part 1

Watch the pressure in the left heart go up and down with every heart beat! Rishi is a pediatric infectious disease physician and works at Khan Academy.

Pressure volume loops

Pressure in the left heart - part 1
Pressure in the left heart - part 2
Pressure in the left heart - part 3
Left ventricular pressure vs. time
Left ventricular volume vs. time
Drawing a pressure-volume loop
Understanding the pressure-volume loop
End diastolic pressure-volume relationship (EDPVR)
End systolic pressure-volume relationship (ESPVR)
Reimagine the pressure volume relationship
What is preload?
Why doesn't the heart rip?

If the above player doesn't work, try this direct link.

All Khan Academy content is available for free at www.khanacademy.org.
This collection was created November 2014.