[Analysis of the activity of fibers in an entire nerve trunk and a study of impulse frequency in sympathetic preganglionic fibers].
The firing rate in type "B" preganglionic sympathetic fibers during strong pressor reactions varied in different fibers from 0 to 80/sec. With an increase of the pressor reaction, the maximum of the density of frequency distribution shifts from 30--40 to 50--60/sec, previously "silent" fibers becoming involved.
D000818:Animals; D001339:Autonomic Fibers, Preganglionic / Q000502:physiology*; D001794:Blood Pressure; D002415:Cats; D004558:Electric Stimulation; D009431:Neural Conduction; D010525:Peripheral Nerves / Q000502:physiology*; D012018:Reflex / Q000502:physiology; D013564:Sympathetic Nervous System / Q000502:physiology*; D013997:Time Factors
Analiz aktivnosti volokon v obshchem nervnom stvole i issledovanie chastot impul'satsii v simpaticheskikh preganglionarnykh volokon.