title: Effects of muscarinic agonists and antagonistis on the negative chronotropic response to the vagus nerve stimulation.
mesh_terms: D000818:Animals; D001286:Atropine Derivatives / Q000494:pharmacology; D003864:Depression, Chemical; D004558:Electric Stimulation; D006339:Heart Rate / Q000187:drug effects*; D008297:Male; D008688:Methacholine Compounds / Q000494:pharmacology; D011817:Rabbits; D011950:Receptors, Cholinergic / Q000187:drug effects*; D011976:Receptors, Muscarinic / Q000187:drug effects*; D014630:Vagus Nerve / Q000502:physiology*
chemical_list: D001286:Atropine Derivatives; D008688:Methacholine Compounds; D011950:Receptors, Cholinergic; D011976:Receptors, Muscarinic