[Cardiovascular reactions to a change in the composition of cerebrospinal fluid].
In cats and dogs, cardiovascular responses were studied during stimulation of afferents, intraspinal pathways, after changes in composition of interneuronal media, 3rd ventricle's and spinal fluid. The longer hemodynamic responses as compared with the reflex and humoral those, preservation in conditions of spinal shock, their increased markedness together with weakening of the reflex regulation, their interrelationship with the reflex effects, their differentiation associated with the type of affecting drugs and with morpho-functional features of the central mechanisms of regulation and, finally, their integration with the reflex and hemato-encephalic influences in determination of the final hemodynamic effect,--all these constituted the six revealed features. Possible controlling role of the fluid effects is discussed.
D000109:Acetylcholine / Q000494:pharmacology; D000818:Animals; D001237:Asphyxia / Q000503:physiopathology; D001794:Blood Pressure; D002320:Cardiovascular Physiological Phenomena; D002395:Catecholamines / Q000494:pharmacology; D002415:Cats; D002555:Cerebrospinal Fluid / Q000502:physiology*; D003655:Decerebrate State / Q000503:physiopathology; D004285:Dogs; D004558:Electric Stimulation; D006614:Hindlimb / Q000098:blood supply; D007031:Hypothalamus / Q000187:drug effects; D009475:Neurons, Afferent / Q000502:physiology; D012701:Serotonin / Q000494:pharmacology; D013116:Spinal Cord / Q000187:drug effects / Q000502:physiology; D014655:Vascular Resistance; D014666:Vasomotor System / Q000502:physiology*
D002395:Catecholamines; D012701:Serotonin; D000109:Acetylcholine
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