Spread of the dorsal root potentials in lower lumbar, sacral and upper caudal spinal cord

@article{Lupa2004SpreadOT,
  title={Spread of the dorsal root potentials in lower lumbar, sacral and upper caudal spinal cord},
  author={K. Lupa and G. W{\'o}jcik and M. Oż{\'o}g and A. Niechaj},
  journal={Pfl{\"u}gers Archiv},
  year={2004},
  volume={381},
  pages={201-207}
}
Spread of the dorsal root potentials (DRPs) along lower lumbar, sacral, and upper caudal segments of the cord has been studied in spinal cats. Ipsilateral DRPs produced by stimulation of L5 dorsal root with single volleys and recorded in consecutively more and more caudal segments gradually decrease and after passing 6 segments attain 47% of amplitude observed in L6 dorsal root. DRPs spreading cranially from Ca2 dorsal root along 6 segments decrease virtually to zero. Depolarizations spreading… Expand
Differential depression by apomorphine of the dorsal root potentials spreading caudally and cranially in the cat spinal cord
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It is suggested that differences in the depression of the DRPs spreading caUDally and cranially result from different numbers of dopaminergic neurons terminating on interneurons transmitting depolarization cranially or caudally, respectively. Expand
Local and diffuse mechanisms of primary afferent depolarization and presynaptic inhibition in the rat spinal cord
  • M. Lidierth
  • Chemistry, Medicine
  • The Journal of physiology
  • 2006
Two types of dorsal root potential (DRP) were found in the spinal cord of urethane‐anaesthetized rats. Local DRPs with short latency‐to‐onset were evoked on roots close to the point of entry of anExpand
Distribution of bilateral dorsal root potentials evoked by volleys in afferents entering lumbar and sacral segments of the spinal cord
Ipsilateral dorsal root potentials evoked by volleys entering lumbar and sacral segments of the cord are largest at the level of entry of afferent volleys. Contralateral potentials resulting fromExpand
Temporal facilitation of depressor responses evoked by stimulation of A- and C-fibres in the aortic nerve.
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Increase in number of volleys in A-or C-fibres in the aortic nerve produces rises of depressor responses which indicate temporal facilitation, which was studied in rabbits anaesthetized with urethane. Expand

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