[Reciprocal connections of respiratory center nuclei].
The reactions of 181 respiratory neurons of solitary and ambiguous nuclei were studied on 64 cats in the course of stimulation of inspiratory and expiratory zones of gigantocellular nuclei. A study was also made of the reactions of 224 reticular and 9 respiratory neurons of these zones during stimulation of solitary and ambiguous nuclei. Various reactions were recorded in response to the stimulation. Therefore the nuclei of the respiratory center possess various information. In the course of stimulation of the gigantocellular nucleus there predominated an increase in the neuronal electrical activity. On the contrary, inhibition of respiratory and reticular neurons of the gigantocellular nucleus was predominant in the course of stimulation of solitary and ambiguus nuclei. It is suggested that the interactions described underlie the formation of circular rhythms of respiratory center stimulation.
D000818:Animals; D002415:Cats; D004558:Electric Stimulation; D004594:Electrophysiology; D009434:Neural Pathways / Q000502:physiology; D012119:Respiration; D012125:Respiratory Center / Q000502:physiology*
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