Effects of rectal distension on the internal anal sphincter of cats.
D000109:Acetylcholine / Q000494:pharmacology; D001003:Anal Canal / Q000502:physiology*; D000818:Animals; D001285:Atropine / Q000494:pharmacology; D002415:Cats; D004837:Epinephrine / Q000494:pharmacology; D007545:Isoproterenol / Q000494:pharmacology; D009119:Muscle Contraction / Q000187:drug effects; D009130:Muscle, Smooth / Q000502:physiology*; D009638:Norepinephrine / Q000494:pharmacology; D012007:Rectum / Q000502:physiology
D001285:Atropine; D007545:Isoproterenol; D000109:Acetylcholine; D009638:Norepinephrine; D004837:Epinephrine