You’ll always find 2 pressures shown in blood pressure ranges, namely the systolic and the diastolic. High blood pressure is called hypertension, and low blood pressure is called hypotension.
Blood pressure is normally noted by using the systolic number in front of or over the diastolic number, e.g.120/80 mmHg.
The systolic pressure is the pressure when the heart pumps blood out of the ventricle in to the veins.
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