THE FORCE EXERTED BY BLOOD ON THE WALLS OF BLOOD VESSELS IS KNOWN AS BLOOD PRESSURE. THE UNIT OF MEASUREMENT FOR BP IS MILLIMETERS OF MERCURY. SYSTOLIC BLOOD PRESSURE (THE PRESSURE OF THE HEART WHEN IT PUMPS BLOOD) AND DIASTOLIC BLOOD PRESSURE (THE PRESSURE OF THE HEART WHEN IT IS AT REST) ARE ALSO COMMONLY MEASURED.
NORMAL BLOOD PRESSURE VALUES ACCORDING TO WHO
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