Page 9, Hemodynamics, Dr. D. Penney


Hydrostatic pressure:

At least three factors contribute to the so-called hydrostatic pressure, a term which is not accepted by Henry Badeer.

  • The filling pressure of the fluid contained in the vasculature. According to this concept, even if the heart is not pumping, the vascular system is filled with a volume of blood and this volume within the elastic structures contributes a small but significant pressure of approximately 12-16 mmHg. This is a concept espoused by Arthur Guyton.

  • Gravity acting on long vertical vascular columns contributes to transmural pressure; thus, the pressure in leg veins is greater than in neck veins.

  • Viscous flow pressure is that portion of the transmural pressure generated when the heart pumps against the resistance of the circuit.



    NEXT PAGE

    PREVIOUS PAGE

    BACK TO INDEX