The influence of blood vessel diameter on peripheral resistance is ________.
A. the only factor that influences resistance
B. significant because resistance is inversely proportional to the fourth power of the vessel radius
C. significant because resistance is directly proportional to the blood vessel diameter
D. insignificant because vessel diameter does not vary
Answer:B
The influence of blood vessel diameter on peripheral resistance is ________.
A. the only factor that influences resistance B. significant because resistance is inversely proportional to the fourth power of the vessel radius C. significant because resistance is directly proportional to the blood vessel diameter D. insignificant because vessel diameter does not vary