Non-adrenergic inhibitory nerves.
D000818:Animals; D001285:Atropine / Q000494:pharmacology; D001980:Bronchi / Q000294:innervation*; D001993:Bronchodilator Agents / Q000494:pharmacology*; D002415:Cats; D009130:Muscle, Smooth / Q000502:physiology*; D011433:Propranolol / Q000494:pharmacology; D012701:Serotonin / Q000494:pharmacology; D014630:Vagus Nerve / Q000187:drug effects / Q000502:physiology*
D001993:Bronchodilator Agents; D012701:Serotonin; D001285:Atropine; D011433:Propranolol