Pharmacology The activation of muscarinic receptors in bronchiolar smooth muscle is associated with A Increase in IP3 and DAG B Inhibition of protein kinase C C Activation of adenylyl cyclase D Opening of Na + /K +cation channels 💡 Explanation The activation of muscarinic receptors in bronchiolar smooth muscle is associated with ✓ Correct Answer: A. Increase in IP3 and DAG