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MCAT Question A Day - 3/17/14

Blood pressure is a function of cardiac output (heart rate 3 stroke volume), as well as peripheral resistance (a measure of friction between the blood and the blood vessel walls). Factors that can
increase peripheral resistance include

A.  vasoconstriction and low blood viscosity.
B.  vasoconstriction and high blood viscosity.
C.  vasodilation and low blood viscosity.
D.  vasodilation and high blood viscosity.

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