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Homework Help: Why is human heart not a centrifuge pump

  1. Sep 20, 2012 #1
    1. The problem statement, all variables and given/known data

    Why is human heart not a centrifuge pump but positive displacement pump ?

    2. Relevant equations

    3. The attempt at a solution

    Maybe bcoz there is no continuous flow of blood. blood goes thru body in packets hence we hear heart beats..
  2. jcsd
  3. Sep 20, 2012 #2


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    Staff: Mentor

    Re: Pumps

    I thing you are getting it reversed - there is no continuous flow of blood because the heart is a displacement pump. Besides, what you wrote is a kind of not-an-answer - it doesn't address "why", just mentions some tangential facts.

    As far as I remember there is only one animal with a strictly rotating organ, apparently these are hard to evolve.
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