A Physiologist Is Conducting an Experiment to Study the Effect

A physiologist is conducting an experiment to study the effect of hypertension on blood vessels and blood flow. In one of the patients , he discoves that the right renal artery is narrowed and the left renal is intact. If he concludes the flow in the vessel is decreased by factor of 16 compared to the left. By what percentage has the radius of the lumen been reduced?

A) 25%
B) 33%
C) 50%
D) 75%
E) 90%

Correct Answer:

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