Pharmacology Muscarinic receptors on blood vessel endothelium cause A Vasodilatation through acetylcholine B Vasodilatation through NO C Vasoconstriction through acetylcholine D Vasoconstriction through endotheline 💡 Explanation Muscarinic receptors on blood vessel endothelium cause ✓ Correct Answer: B. Vasodilatation through NO