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.
This question appeared on the ETEA MDCAT 2008 paper, which you can sit online with every answer explained.
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