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At a resting pulse rate of 77 beats per minute, the human heart typically pumps about 71 mL of blood per beat. Blood has a density of 1060 kg/m3. Circulating all of the blood in the body through the heart takes about 1 min for a person at rest. Approximately how much blood is in the body? volume of blood in body On average, what mass of blood does the heart pump with each heart beat? kg mass per heart beat:
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Answer #1

A)

Volume of blood, V = 71 x 77 = 5467 ml = 5.467 l = 0.005467 m^3

B)

Mass per heart beat = 1060 x 0.005467 = 5.80 kg

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