Large diameter, thick-walled arteries that are close to the heart and act as pressure reservoirs are called __________.
A. arterioles
B. veins
C. elastic arteries
D. muscular arteries
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A muscle that is being regularly contracted during exercise will attract blood flow by dilating arterioles. Which of these factors would contribute to this effect?
A. heat loss from the muscle
B. increased levels of carbon dioxide
C. an increase in sympathetic tone
D. increased levels of oxygen
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