The diameter of many blood vessels is controlled exclusively by the ________ nervous system, and decreases in the activity of this system result in ________.
A) parasympathetic; vasoconstriction
B) parasympathetic; vasodilation
C) somatic; vasoconstriction.
D) sympathetic; vasoconstriction.
E) sympathetic; vasodilation.
Correct Answer:
Verified
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