essay on blood pressure
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Blood pressure (BP) is the pressure of circulating blood against the walls of blood vessels. Most of this pressure results from the heart ...
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The heart pumps blood through the blood vessels in our bodies. This is important for delivering oxygen and other nutrients to our tissues, and also for removing waste. The pumping action is caused by the heart muscle relaxing and contracting. When the heart muscle relaxes (called diastole) the heart is filled with blood. Subsequent contraction of the heart muscle (called systole) forces the blood from the heart into the blood vessels to circulate around the body. Blood pressure (BP) refers to the pressure created in the arteries by blood as the heart contracts and relaxes.
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