short note on blood pressure class 10
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Blood pressure is usually measured in millimeters of mercury (mmHg). There are two numbers in a blood pressure. The first is the systolic pressure. It measures how hard the blood pushes against the walls of the arteries when the heart is in systole (beating and pushing out blood).
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Blood Pressure- Blood pressure is the pressure of circulating blood on the walls of blood vessels.
Most of the pressure is due to work done by heart by pumping blood through the circulatory system.
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