Stimulation of ___________ receptors results in peripheral vasoconstriction, mild bronchoconstriction, and stimulation of metabolism
a. Alpha1
b. Alpha2
c. Beta1
d. Beta2
a
Rationale: a. Correct.
b. Alpha2 stimulation inhibits the release of preganglionic norepinephrine.
c. Beta1 cause an increase in heart rate, cardiac contractile force, automaticity, and conduction.
d. Beta2 stimulation causes vasodilatation and bronchodilation.
Health Professions
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