Which statement best describes the action of norepinephrine?
A) An enzymatic substance released at receptors at the end of postganglionic nerves
B) The neurotransmitter that binds to adrenergic receptors to produce a physiologic response
C) The activation of beta receptors to constrict coronary blood vessels
D) The stimulation of alpha receptors to decrease blood pressure
Correct Answer:
Verified
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