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If a constriction occurs in a vein or artery, the heart will have to work considerably...

If a constriction occurs in a vein or artery, the heart will have to work considerably harder in order to produce a higher pressure drop and hence maintain the required blood flow rate. The diameter of a person’s left anterior descending artery has decreased by 10% due to arterial sclerosis. If the amount of blood pumped through this artery per unit time is the same as before the constriction developed, by what factor has the blood pressure drop (from one end to the artery to the other) changed? Assume the artery is horizontal

A. 1.5
B. 1.2
C. 1.7
D. 1.9
E. 1.1
F. 2.0
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Application of Equation of Continuity and Bernoulli's Theorem

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