What Does the Dicrotic Notch Represent

The dicrotic notch, which is widely believed to represent the closure of the aortic valve, (but in fact…) The diastolic phase, which represents the run-off of blood into the peripheral circulation.

What does the Dicrotic notch tell us?

The dicrotic notch is a prominent and distinctive feature of the pressure waveform in the central arteries. It is universally used to demarcate the end of systole and the beginning of diastole in these arteries.

What does the Dicrotic notch represent on an arterial pressure waveform quizlet?

The dicrotic notch is seen on the downslope of the right side of the waveform and indicates closure of the aortic valve. As pressure falls, the aortic valve closes, signaling the onset of diastole.