Vasodilation is a(n):
A) decrease in the diameter of a blood vessel.
B) drug that dilates the blood vessels.
C) synonym for vasoconstriction.
D) increase in the diameter of a blood vessel.

Question

Quizplus · Accepted Answer

Vasodilation refers to an increase in the diameter of a blood vessel, allowing for increased blood flow. Choice A is incorrect as it describes vasoconstriction, the narrowing of blood vessels. Choice B is incorrect as it describes a drug that specifically dilates blood vessels, but is not the definition of vasodilation itself. Choice C is incorrect as it is the opposite of vasodilation and refers to the narrowing of blood vessels.

Vasodilation Is A(n)