does bloodpressure cycle 120/80 go on 72 times a minute according to heart functioncycle or prolong avg importance

does the blood variation between 120 and 80 during systole and diastole ensue 72 times a minute corresponding to heart compression and expansion or does it maintain a average efficacy over a period of tome.? First of adjectives it depends on WHERE you are measuring. The enormously small vessels usually say a more or less steady pressure, because the force of the "wave" has be absorbed by the preceding bigger vessel. Big vessels close to the aorta are subjected to much bigger pressure changes during the cycle (from 10 to 200, for example). The "120/80" number is a convention and it refers to the branchial artery ONLY.
This length is supposed to provide the maximum pressure (120) and the minimum pressure (80) that acts on that vessel during a single cycle. The duration of the pulse vary but as a general rule the true "average" pressure is closer to 80 than to 120.
I can't plot the curve right in a minute but think of it close to a reverse U for the big vessels.
Blood pressure surrounded by the arteries change according to the rhythm of the pulse rate. Please see the webpages for more details on Blood pressure.
For 0.3 second it is 120 mm of mercury. Immediately after for 0.5 secs it is 80 mm of Hg.
The systolic pressure is the pressure in the arteries when the heart is surrounded by systole (the pressure that the heart works against)
The diastolic pressure is the pressure in the arteries when the heart is at rest (the pressure that feed the veins/fills the heart)
The avg pressure (Mean arterial pressure) is not simply (120 + 80)/2. Because the heart spends more time in diastole than systole, MAP is calculated to correct for that (I'm blanking on the exact formula though)
I'm sure this isn't valid clear, but hope it helps some at tiniest

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