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C. Blood Pressur 1. The density of blood is 1055 kg/m3. If the blood at the very top of your head exerts a minimum gauge pressure of 45 mm Hg (6000 Pa), estimate the gauge pressure at your heart (0.25 m below the top of your head) in Pa. (Recall: gauge pressure is thepressure above atmospheric pressure) 2. are usually measured in mm Hg. Convert your answer In the US, blood pressures in question C1 to units of mm Hg. When your doctor takes your blood pressure,it first number is the systolic pressure The second number is the diastolic beats. is usually reported as two numbers. The when your heart beats. is your blood pressure between heart which is your blood pressure pressure, which 3. Do you expect your systolic or your diastolic pressure to be closer to the number u calculated in question C2? Explain your reasoning. yo 4. The pumping of the heart increases your blood pressure by approximately 40 mm Hg above diastolic pressure. Use your result to C2 to estimate your systolcpressure.

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O Densu) ol blood is e; (055 kglmp . Blood pressure a4 topol heat is P.-45mm凵g P, = 6000 Pa , -the8auga Pres suve at heart

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