A small blood vessels near the skin surface has a radius of 10um, a length  of 1um and the pressure  drop along the blood vessel is 2.50pa.The viscosity of blood is 0.0027pa.s. i. What is the  volume flow rate of blood through this blood vessel. What is the velocity  of blood flow? ii.Vasodilation causes the radius of this blood vessel to increase to 12um, while leaving the pressure drop along the vessel unchanged? What is the velocity of blood flow?

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Variation of pressure

From the equation of pressure, pressure is directly proportional to the applied force.