Blood pressure reaches its highest levels in the large arteries near the heart and drops off toward the peripheral areas of the circulatory system.
Blodd pressure varies in accordance with each beating off heart. When the heart contracts, squeezing the blood out, the pressure inside the blood vessell is called systolic. when the heart expands, sucking the blood back in, the pressure of the blood vessel is called diastolic.
Sourches : Manual intruction Dharma Healthcare Blood Pressure Kit product.
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