If the pressure gradient in a vessel is constant, flow will double when the radius decreases by two-fold.

Name: If the pressure gradient in a vessel is constant, flow will double when the radius decreases by two-fold.
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Question

Quizplus · Accepted Answer

According to the Hagen-Poiseuille equation, flow is proportional to the fourth power of the radius. If the radius decreases by two-fold, the flow will decrease by a factor of 16, not double.

If the Pressure Gradient in a Vessel Is Constant, Flow