Trace the path of blood, break the conduction system on purpose, scrub through one heartbeat, and run the cardiac output simulator. Nothing here is graded.
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Oxygen-poor blood (blue label)Oxygen-rich blood (red label)The blood drop / hint
Click (or tap) a structure on the heart, or use the buttons below. They do the same thing.
Part 2: Conduction and ECG Lab
SA and AV nodesConduction pathwaysSignal / depolarizingECG
Part 3: Wiggers Explorer
LV pressureAortic pressureLA pressureLV volumeECG
Part 4: Cardiac Output
Blood in the left ventricleFrank–Starling curve (now)Normal curveStroke volume