Blood Pressure

This is the pressure exerted by the flowing column of blood on the walls of the blood vessel especially the arteries. The arteries are elastic and therefor exert an opposing pressure on this column of blood which can be detected and measured by an apparatus. The pressure during the pumping of blood by heart (systole) is the systolic pressure and the one when the heart relaxes in between the strokes called the diastolic blood pressure. There is quite a variation in the normal levels based on age, time of the day, lifestyle etc.


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