Anatomy Other topics and Adverse effects f9761f0f Fastest acting receptor/transduction mechanism is A Adenylyl cyclase-cyclic AMP pathway B Phospholipase C-IP3:DAG pathway C Intrinsic ion channel operation D Nuclear receptor High-Yield Explanation Ref-KDT 6/e p40 Drugs acting and ionotropic receptor are fast acting where as those acting through nuclear receptors are slowest in action