All are true about nitric oxide, EXCEPT____________?
Correct answer: B. Acts via cAMP
- A. Regulates vasomotor tone
- B. Acts via cAMP
- C. Present in cigarette smoke
- D. It is important in penile erection
Explanation
Nitric oxide activates soluble guanylyl cyclase, increasing cGMP, not cAMP. It relaxes vascular smooth muscle, contributes to penile erection, and is present in cigarette smoke.
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