Sympathetic nervous system stimulation that results in vasoconstriction is most likely affecting: A) beta₂ receptor sites. B) alpha₁ receptor sites. C) beta₁ receptor sites. D) alpha₂ receptor sites.

Question

Quizplus · Accepted Answer

Vasoconstriction is primarily mediated by activation of alpha1 receptor sites in the sympathetic nervous system. Therefore, the correct choice is B, which is the only one that includes alpha receptor sites.

Sympathetic Nervous System Stimulation That Results in Vasoconstriction Is Most