Hemodynamics, Dr. D. Penney

Poiseuille equation

Written by Neumann and Hagenbach, 1858, based on the data of Poiseuille

F is proportional to Perfusion Pressure
F is proportional to 1 / Eta; inversely proportional to Eta.
F is proportional to r4
F is proportional 1 / length; inversely proportional to length.

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  • r is most important factor physiologically in determining blood flow
  • P is second most important.

    Applicability to the Eq. assumes:

  • Rigid conduit
  • Streamline flow
  • Newtonian fluid

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