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PhysioEx #5 activities 4,5,6. How does the radius of the lumen determine the pressures necessary for...

PhysioEx #5 activities 4,5,6.
How does the radius of the lumen determine the pressures necessary for the pump to move fluid? How can you use these observations to explain how an active person is able to have a greater volume of blood moves with each contraction of the heart? Explain the effects of changing pressures on each side of the pump as it relates to the volumes and pressures of the contractions. Related these to the Frank Starling effect.
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If the radius of lumen is less more pressure necessary for the pump to move fluid

Radius of lumen is inversely proportional to the pressure required

When you exercise(the person is active) blood flow is greater because the blood vessels in your body dilated As These byproduct’s leave the muscle cells they cause the small blood vessels within the muscle to dilate called Vasodilation

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