Norepinephrine:
Correct answer: A. Is released by sympathetic fibers
- A. Is released by sympathetic fibers
- B. Is released by parasympathetic fibers
- C. Decrease the heart rate
- D. Decrease blood pressure
- E. Released by sympathetic fibers and decreases blood pressure
Explanation
Norepinephrine, also known as noradrenaline, is a neurotransmitter and hormone released by sympathetic fibers of the autonomic nervous system. Its effects on the body include increasing heart rate, constricting blood vessels, and raising blood pressure.
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