title: [Adrenoreactivity of different portions of the vas deferens in the rat].
abstract: Adrenoreactivity of rat vas deferens was shown to vary along its length. These variations are manifested in a greater reaction of epididymal part to adrenomimetic substances and transmural stimulation and are due to a higher sensitivity and greater number of alpha-adrenoreceptors in the epididymal part. Different populations of alpha-adrenoreceptors seem to exist in the rat vas deferens, with the population of receptors having a greater affinity for noradrenaline concentrated in the epididymal part.
mesh_terms: D000818:Animals; D004347:Drug Interactions; D006145:Guanethidine / Q000494:pharmacology; D008297:Male; D009130:Muscle, Smooth / Q000187:drug effects; D009638:Norepinephrine / Q000494:pharmacology*; D011189:Potassium Chloride / Q000494:pharmacology; D051381:Rats; D011919:Rats, Inbred Strains; D011942:Receptors, Adrenergic, alpha / Q000032:analysis; D013268:Stimulation, Chemical; D014649:Vas Deferens / Q000032:analysis / Q000187:drug effects*
chemical_list: D011942:Receptors, Adrenergic, alpha; D011189:Potassium Chloride; D009638:Norepinephrine; D006145:Guanethidine
vernacular_title: Ob adrenoreaktivnosti raznykh uchastkov semiavynosiashchego protoka krysy.