Slide 3:
It is named after Dr. Carl J. Wiggers, M.D.
A Wiggers diagram is a standard diagram used in cardiac physiology
The X axis is used to plot time, while the Y axis contains all of the following on a single grid:
Blood pressure
Aortic pressure
Ventricular pressure
Atrial pressure
Ventricular volume
Electrocardiogram
Arterial flow (optional)
Heart sounds (optional)