Multiple choice

Which of the following is the function of nor-epinephrine?

  1. To increase blood pressure

  2. Urine formation

  3. To increase secretion of adrenalin

  4. Both (1) and (2)

  5. None of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Norepinephrine is a neurotransmitter and hormone that acts as a vasoconstrictor, narrowing blood vessels and thereby increasing blood pressure. It is released by sympathetic nerve endings and the adrenal medulla as part of the fight-or-flight response. The other options are incorrect: urine formation occurs in kidneys, and norepinephrine does not directly stimulate adrenaline secretion.

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