[Mechanisms of divergent-convergent connections in the spinal cord].
In acute experiments on anesthetized and on spinal cats, three major mechanisms of divergent-convergent interrelationships in the spinal cord responsible for the formation of electrical responses in the efferent and afferent links of the spinal reflex apparatus, were electrophysiologically established: 1) afferent-efferent, 2) afferent-interneuron-efferent, and 3) afferent--interneuron-afferent mechanisms each having special features of its structural and functional organization. The first two mechanisms are actualized through mono- and poly-synaptic discharges in the ventral roots, resp., and the third one--through electrotonic potentials and reflexes of the dorsal roots. Intracellular recording of potentials revealed that single interneurons participated in the actualization of the second and third mechanisms of the divergent-convergent interrelationships.
D000818:Animals; D000870:Anterior Horn Cells / Q000502:physiology; D002415:Cats; D004594:Electrophysiology; D007395:Interneurons / Q000502:physiology; D009434:Neural Pathways / Q000502:physiology; D009475:Neurons, Afferent / Q000502:physiology; D012018:Reflex / Q000502:physiology*; D012023:Reflex, Monosynaptic; D013116:Spinal Cord / Q000502:physiology*; D013126:Spinal Nerve Roots / Q000502:physiology; D009435:Synaptic Transmission
Mekhanizmy divergentno-konvergentnykh vzaimosviazeĭ v spinnom mozgu.