Cardiovascular L2

    Cards (7)

    • Hydraulic pressure

      Pressure generated by a pump and used to force fluids (blood) through a vessel (arteries)
    • Hydrostatic pressure

      Pressure generated by gravity and the effect of the height of a column of fluid at the bottom of that column
    • Hydrostatic pressure

      Increases with the height of the column of fluid
    • Hydrostatic pressure is only an issue in air, not in water
    • For a large dinosaur, pumping blood to the head would require an enormous heart, tremendous blood pressure, and huge muscular blood vessels
    • Proposed solutions for dinosaur circulatory system
      • Be aquatic
      • Auxiliary hearts
      • Keep the head horizontal
    • Keeping the head horizontal does not violate what we know about circulation and is supported by anatomical evidence
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