Problem 2. [Hold the mayo!) C. Assuming that the pressure difference across the artery remains the same between the occluded and open artery, calculate the ratio of current flow (Q] in the 33% occluded vs. Coronary arteries are responsible for supplying oxygenated blood to heart muscle. Coronary the open artery. (i.e. find Qaccinded/ Popen) heart disease is caused by the arteriosclerosis (the deposition of plaque along the arterial walls]. One common response by the body to coronary arteriosclerosis is to increase the blood pressure which can cause damage to the body's organs if too high. We will analyze the scenario of constriction of an artery where damping effects cannot be ignored. Hint: This problem is a bit difficult - you may want to try problems 9-11 before trying this one A. The radius of a typical open artery is 1.5 mm. What is the radius of an artery that is 33% occluded? (33% of the cross-sectional area is taken up by plaque.) Give your answer in mm. D. The body attempts to compensate with reduced flow in part by increasing the blood pressure. By what factor would the pressure difference across the artery (AP) have to increase in the 33% occluded artery to have the volume of blood flow (Q) equal to that in the open artery (i.e. find APoccluded/APapen) B. Calculate the magnitude of the pressure difference along 4 cm of the open artery given that the viscosity of blood is 3 x 10" Pa -s and blood flow in the coronary artery is 4.17 mL/s in units of Pa