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10 July, 07:01

Calculate the volume of blood moved per minute by a heart at rest. enter your answer as a whole number (in ml). do not include a comma in your answer. (example: 2600; not 2,600)

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  1. 10 July, 10:20
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    The right answer is 4900ml / minute.

    In the heart setting, there are two parameters: systolic ejection volume and heart rate. Systole is the contraction of the heart. The systolic ejection volume in a 70 kg adult man at rest is estimated at 70 mL per beat, or 70 ml. b-1. The heart rate of a man at rest is on average 70 beats per minute, scored 70 beats. min-1.

    Since there is a frequency (70 per minute) and a volume (70ml), we can calculate the cardiac output for an adult man at rest:

    Cardiac output = Heart rate * Stroke volume.

    So,

    70 (per minute) * 70 ml = 4900 ml / minute
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