Ventricular pressure
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Red = aortic pressure
Blue = left ventricular pressure
Yellow = left atrial pressure.
Ventricular pressure is a measure of blood pressure within the ventricles of the heart.
During most of the cardiac cycle, ventricular pressure is less than the pressure in the aorta, but during systole, the ventricular pressure rapidly increases, and the two pressures become equal to each other (represented by the junction of the blue and red lines on the diagram on this page), the aortic valve opens, and blood is pumped to the body.
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