Home Biology Chemical Co-ordination and Integration Norepinephrine (i) is released by sympatheti…
Biology Chemical Co-ordination and Integration Single Correct MCQ
Published on: August 21, 2026

Norepinephrine

(i) is released by sympathetic fibres.

(ii) is released by parasympathetic fibres.

(iii) increases the heart rate.

(iv) decreases blood pressure.

Which of the above said statements are correct?

A
i and ii
B
i and iii
C
ii and iii
D
ii and iv

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