Autonomic Pharmacologyby drdasarajuMarch 26, 2022 Inhibitory presynaptic autoreceptors are present only on cholinergic neurons. True False Enteric nervous system is under the control of sympathetic nervous system. True False Activation of β receptors increase inositol trisphosphate and diacylglycerol. True False Rate limiting step in the synthesis of noradrenaline is mediated by tyrosine hydroxylase. True False Secretion of renin from kidney is mediated by stimulation of M1 receptors α1 receptors β1 receptors D1 receptors Decrease in cardiac rate and force of contraction is mediated by stimulation of M2 receptors α2 receptors β2 receptors D2 receptors Duration of action of acetylcholine 1 milli second 2 milli seconds 3 milli seconds 4 milli seconds Activation of muscarinic receptors causes all the following except Activation of phospholipase C Inhibition of adenylyl cyclase Activation of adenylyl cyclase Activation of potassium channels Time is Up! Time's up Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Name * Email * Website Comment * Save my name, email, and website in this browser for the next time I comment.