Shunting during exercise has the dramatic affect of increasing blood flow ot the working skeletal muscles from about 20% of total cardiac output to what increased percent?
a. 30%
b. 50%
c. 85%
d. 95%
Answer: c. 85%
Shunting during exercise has the dramatic effect of increasing blood flow to the working skeletal muscles from about 20% of total cardiac output to 85% during high intensity exercise. This is accomplished by the vasoconstriction of vessels around the organ systems and the concurrent vasodilation of the vessels in the muscles.