Norepinephrine: (i) is released by sympathetic fibers (ii) is released by parasympathetic fibers (iii) increases the heart rate (iv) decreases blood pressure. Which of the above statements are correct

Question

Norepinephrine: (i) is released by sympathetic fibers (ii) is released by parasympathetic fibers (iii) increases the heart rate (iv) decreases blood pressure. Which of the above statements are correct?NEET 2013 (Karnataka)

TestHub · Accepted Answer

Nor epinephrine is secreted by some neurons of the sympathetic nervous system and also by adrenal medulla. It accelerates heart rate, while epinephrine is secreted by parasympathetic nervous system and decrease blood pressure. (Ref. to Fig. 14.7) Related Theory

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