Pharmacology Activation of postsynaptic M2 receptors on the hea is associated with A Activation of adenylyl cyclase B Opening of Na+/K+ cation channels C Decrease in cAMP formation D Increase in IP3 and DAG 💡 Explanation Activation of postsynaptic M2 receptors on the hea is associated with ✓ Correct Answer: B. Opening of Na+/K+ cation channels