The relevance of cardio-pulmonary-vascular reflex to regulation of the brain vessels.
In 11 cordotomized (C2) rats with the vagi cut, monopolar electrical stimulation at a current intensity of 73 +/- 21 (S.E.) microA (n = 6) to the intermediate region of the solitary nucleus elicited an increase (p less than 0.05) in regional blood flow (iodoantipyrine technique) of 71% and 43% in the frontal cortex and caudate nucleus, respectively. The findings suggest that some of the cardio-pulmonary and cardio-vascular reflex mechanisms are involved in the regulation of the blood vessels of the brain.
D000818:Animals; D002421:Caudate Nucleus / Q000098:blood supply; D002560:Cerebrovascular Circulation; D002628:Chemoreceptor Cells / Q000502:physiology; D005625:Frontal Lobe / Q000098:blood supply; D006321:Heart / Q000294:innervation*; D008168:Lung / Q000294:innervation*; D008297:Male; D008526:Medulla Oblongata / Q000502:physiology*; D009778:Occipital Lobe / Q000098:blood supply; D011311:Pressoreceptors / Q000502:physiology; D051381:Rats; D011919:Rats, Inbred Strains; D012018:Reflex / Q000502:physiology*; D014630:Vagus Nerve / Q000502:physiology