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Physiology General 2f041d58

Which of the following is the mechanism for a decrease in splanchnic blood flow during exercise?

A

Venoconstriction with decreased blood flow

B

Venodilation with decreased blood flow

C

Venodilation with increased blood flow

D

Venodilation with normal blood flow

High-Yield Explanation

Constriction of splanchnic vessels may increase volume of blood actively circulating and this may help in perfusing the muscles by as much as 30%.

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