[The effect of stimulation of the A5 cell group in the medulla oblongata on cardiac activity in the cat].
The anesthetized cats, heart rate and dp/dt max. were elevated in the result of the A5 cell group electrical stimulation. Similarly, the L-glutamate injections, too, increased the heart rate and dp/dt max. After transection of the spinal cord (T8-10) and blocking of rostral ventrolateral medulla, this effect was still present and only blocked by i.v. infusion of phentolamine and hexametonium.
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D000818:Animals; D002415:Cats; D004558:Electric Stimulation / Q000379:methods; D005730:Ganglionic Blockers / Q000494:pharmacology; D005971:Glutamates / Q000494:pharmacology; D018698:Glutamic Acid; D006321:Heart / Q000187:drug effects / Q000502:physiology*; D006339:Heart Rate / Q000187:drug effects / Q000502:physiology; D018738:Hexamethonium; D006584:Hexamethonium Compounds / Q000494:pharmacology; D008526:Medulla Oblongata / Q000166:cytology / Q000187:drug effects / Q000502:physiology*; D008845:Microinjections; D009474:Neurons / Q000187:drug effects / Q000502:physiology*; D010646:Phentolamine / Q000494:pharmacology; D011942:Receptors, Adrenergic, alpha / Q000187:drug effects / Q000502:physiology; D013116:Spinal Cord / Q000502:physiology; D013268:Stimulation, Chemical
D005730:Ganglionic Blockers; D005971:Glutamates; D006584:Hexamethonium Compounds; D011942:Receptors, Adrenergic, alpha; D018738:Hexamethonium; D018698:Glutamic Acid; D010646:Phentolamine
Vliianie stimuliatsii kletochnoĭ gruppy A5 prodolgovatogo mozga na deiatel'nost' serdtsa u koshki.