Comparative study of sympathetic and parasympathetic firing in automatic nerves produced by stimulating different structures of the cat hypothalamus

Autor: K. G. Bagdasaryan, O. G. Baklavadzhyan, I. N. Avetisyan, R. V. Sarukhanyan
Rok vydání: 1988
Předmět:
Zdroj: Neurophysiology. 19:359-366
ISSN: 1573-9007
0090-2977
Popis: It was discovered by making simultaneous recordings of evoked hypothalamic-parasympathetic and hypothalamic-sympathetic firing that sympathetic discharges in the splanchnic nerve and parasympathetic discharges in the pelvic nerve with minimum latency and lowest threshold level could be obtained by stimulating the posterolateral hypothalamus. It was also found that the focus of maximum neuronal activity produced by stimulating afferent visceral nerve fibers as well as the highest concentration of evoked efferent response in sympathetic and parasympathetic nerves were located in the same hypothalamic area. A working hypothesis was put forward that convergent polysensory hypothalamic neurons also act as divergent polyeffector constituents of the integrative system of the hypothalamovisceral reflex arc.
Databáze: OpenAIRE