Effects of adrenergic drugs on sheep oviduct motility.
Recordings of electrical activity of the oviduct in conscious ewes fitted with an extracellular multi-electrode assembly confirm the presence of alpha- and beta-adrenergic receptors in both the ampullary and isthmic portions. Regional differences in response to noradrenaline and isoprenaline were observed particularly during oestrus. In all cases the lowest threshold of sensitivity was exhibited by the isthmic portion of the oviduct.
D000200:Action Potentials / Q000187:drug effects; D000316:Adrenergic alpha-Agonists / Q000494:pharmacology*; D000318:Adrenergic beta-Agonists / Q000494:pharmacology*; D000818:Animals; D004031:Diestrus; D004971:Estrus; D005071:Evoked Potentials / Q000187:drug effects; D005187:Fallopian Tubes / Q000187:drug effects / Q000502:physiology*; D005260:Female; D007545:Isoproterenol / Q000494:pharmacology; D009638:Norepinephrine / Q000494:pharmacology; D010121:Oxytocin / Q000494:pharmacology; D010656:Phenylephrine / Q000494:pharmacology; D011247:Pregnancy; D012756:Sheep / Q000502:physiology*; D014590:Uterine Contraction / Q000187:drug effects
D000316:Adrenergic alpha-Agonists; D000318:Adrenergic beta-Agonists; D010656:Phenylephrine; D010121:Oxytocin; D007545:Isoproterenol; D009638:Norepinephrine