Estimate the volume of a human heart (in mL) using the following measurements/assumptions:_______. 1. Blood flow through the aorta is

Question

Estimate the volume of a human heart (in mL) using the following measurements/assumptions:_______.
1. Blood flow through the aorta is approximately 11.2 cm/s
2. The diameter of the aorta is approximately 3.0 cm
3. Assume the heart pumps its own volume with each beat
4. Assume a pulse rate of 67 beats per minute.

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Acacia 3 years 2021-08-13T17:56:58+00:00 1 Answers 6 views 0

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  1. Doris
    0
    2021-08-13T17:58:10+00:00
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    Answer:

    Explanation:

    radius of aorta = 1.5 cm

    cross sectional area = π r²

    = 3.14 x 1.5²

    = 7.065 cm²

    volume of blood flowing out per second out of heart

    = a x v , a is cross sectional area , v is velocity of flow

    = 7.065 x 11.2

    = 79.128 cm³

    heart beat per second = 67 / 60

    = 1.116666

    If V be the volume of heart

    1.116666 V = 79.128

    V = 70.86 cm³.

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