[Relationship between the early and late components of the somato-sympathetic reflex recorded in pre- and postganglionic sympathetic nerves].
In anesthetized cats, the somato-sympathetic reflex was recorded in T3 white ramus and in the lower cardiac nerve during stimulation of intercostal nerves of the T3 and T5 segments. The amplitude of the early response in the preganglionic nerve was considerably higher than the amplitude of the late response, while the reverse was true for the postganglionic nerve. After transection of the spinal cord in the C4-5 level, the late responses were observed both in the lower cardiac nerve and in T3 white ramus. The late response seems to be realisable by the spinal structures. Active role of sympathetic ganglion in transmission of impulses from the spinal cord to effectors, was noted.
D000818:Animals; D001338:Autonomic Fibers, Postganglionic / Q000502:physiology; D001339:Autonomic Fibers, Preganglionic / Q000502:physiology; D002415:Cats; D004594:Electrophysiology; D006321:Heart / Q000294:innervation; D007367:Intercostal Nerves / Q000502:physiology*; D011930:Reaction Time; D012018:Reflex; D013233:Stellate Ganglion / Q000502:physiology*; D013900:Thoracic Nerves / Q000502:physiology*
O sootnoshenii rannego i pozdnego komponentov somato-simpaticheskogo refleksa, registriruemogo v pre- i postganglionarnykh simpaticheskikh nervakh.