a systolic bp value is the pressure when during the cardiac cycle is maximum during one heartbeat.
a systolic bp value is the pressure when during the cardiac cycle is maximum during one heartbeat.
a systolic bp value is the pressure when during the cardiac cycle?
maximum during one heartbeat
for each heartbeat, blood pressure varies between systolic and diastolic pressures. systolic pressure is peak pressure in the arteries, which occurs near the end of the cardiac cycle when the ventricles are contracting. diastolic pressure is minimum pressure in the arteries, which occurs near the beginning of the cardiac cycle when the ventricles are filled with blood. an example of normal measured values for a resting, healthy adult human is 120 mmhg systolic and 80 mmhg diastolic (written as 120/80 mmhg, and spoken as "one-twenty over eighty").
blood pressure measurement
by observing the mercury in the column while releasing the air pressure with a control valve, one can read the values of the blood pressure in mm hg. the peak pressure in the arteries during the cardiac cycle is the systolic pressure, and the lowest pressure (at the resting phase of the cardiac cycle) is the diastolic pressure. a stethoscope is used in the auscultatory method. systolic pressure (first phase) is identified with the first of the continuous korotkoff sounds. diastolic pressure is identified at the moment the korotkoff sounds disappear (fifth phase).
sphygmomanometer