Multiple choice

All of the following about nitric oxide are true except that

  1. it causes penile erection

  2. it acts via cAMP

  3. it decreases the vasomotor tone

  4. it is present in cigarette smoke
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Nitric oxide acts through cGMP-dependent protein kinase and not through cAMP. It is a vasodilator important in blood pressure regulation involved penile erection. Neurotransmitter in the brain and peripheral ANS inhibits adhesion activation and aggregation of platelets.

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