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Chemical Coordination and Integration question

2013 · Q7
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Chemical Coordination and Integration question

2013 · Q7

NEETBiologyChemical Coordination and IntegrationMCQ+4 / −1
Norepinephrine
(i)  is released by sympathetic fibres
(ii)  is released by parasympathetic fibers
(iii) increases the heart rate
(iv) decreases blood pressure.

Which of the above statements are correct?
  1. A
    (i) and (iii)
  2. B
    (ii) and (iii)
  3. C
    (ii) and (iv)
  4. D
    (i) and (iv)
View written solutionFree

Correct answer: A

Norepinephrine is released by sympathetic fibres i.e, rapidly secreted in response to stress of any kind and during emergency situations. It increases the heart beat, the strength of heart contraction and the rate of respiration.

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