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Pflügers Archiv

, Volume 377, Issue 3, pp 255–261 | Cite as

The relative dependence of the activity of renshaw cells on recurrent pathways during contraction of the triceps muscle

  • Radmila Anastasijević
  • J. Vučo
Excitable Tissues and Central Nervous Physiology

Abstract

Renshaw cell activity was recorded simultaneously with motoneuronal unit discharge during vibration and tetanic stimulation of triceps muscles in decerebrated cats. The experiments confirm that, in this preparation, the motoneurones are the main source of Renshaw cell firing during muscle stretch and vibration and when motoneuronal discharge was induced through the gamma loop. However they also show that a discharge of Renshaw cells, monosynaptically coupled with triceps motoneurones through their recurrent collaterals, could be elicited during contraction of the muscle at the time when the discharge of these motoneurones had been silenced.

The recording of the stretch receptors and motoneuronal unit discharge during stretch, vibration, and ventral root stimulation gave evidence of the contribution of the withdrawal of excitation by primary endings to the occurrence of the silent period during tetanic contraction of the muscle. The measurements of the critical firing level in motoneuronal units responding reflexly to held stretch and vibration of the muscles, and silencing their discharge during muscle shortening, showed that these cells are amongst the lowest ranking in the pool. For these reasons, these data suggest that Renshaw cell firing during vibration and tetanic contraction of the muscle cannot be attributed only to the alpha motoneurone excitation by the Ia fibres.

Key words

Renshaw cells Muscle vibration Spinal motoneurones Silent period 

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References

  1. Anastasijević, R., Vučo, J.: Motoneuronal reflex firing during vibration of the muscle and gamma loop activation. Pflügers Arch.333, 227–239 (1972)Google Scholar
  2. Anastasijević, R., Vučo, J.: Renshaw cells discharge during vibration of the contracting muscle. Proceedings of the International Union of Physiological Sciences, Vol. 13,21 (1977)Google Scholar
  3. Anastasijević, R., Anojcić, M., Todorović, B., Vučo, J.: The differential reflex excitability of alpha motoneurons of decerebrate cats caused by vibration applied to the tendon of the gastrocnemius medialis muscle. Brain Res.11, 336–346 (1968)Google Scholar
  4. Anastasijević, R., Cvetković, M., Vučo, J.: The effect of shortlasting repetitive vibration of the triceps muscle and concomitant fusimotor stimulation on the reflex response of spinal alpha motoneurones in decerebrated cats. Pflügers Arch.325, 220–234 (1971)Google Scholar
  5. Brown, M. C., Engberg, I., Matthews, P. B. C.: The relative sensitivity to vibration of muscle receptors of the cat. J. Physiol.192, 773–800 (1967)Google Scholar
  6. Clamann, P. H., Gillies, J. D., Skinner, R. D., Henneman, E.: Quantitative measures of output of a motoneuron pool during monosynaptic reflexes. J. Neurophysiol.37, 1328–1337 (1974a)Google Scholar
  7. Clamann, H. P., Gillies, J. D., Henneman, E.: Effect of inhibitory inputs on critical firing level and rank order of motoneurons. J. Neurophysiol.,37, 1350–1360 (1974b)Google Scholar
  8. Eccles, J. C., Eccles, R. M., Iggo, A., Ito, M.: Distribution of recurrent inhibition among motoneurones. J. Physiol.159, 479–499 (1961)Google Scholar
  9. Gillies, J. D., Burke, D. J., Lance, J. W.: Tonic vibration reflex in the cat. J. Neurophysiol.34, 252–262 (1971)Google Scholar
  10. Granit, R., Pascoe, J. E., Steg, G.: The behaviour of tonic alpha and gamma motoneurones during stimulation of recurrent collaterals. J. Physiol.138, 381–400 (1957)Google Scholar
  11. Granit, R., Pompeiano, O., Waltman, B.: The early discharge of mammalian muscle spindle at onset of contraction. J. Physiol.147, 399–418 (1959)Google Scholar
  12. Haase, J., Vogel, B.: Die Erregung der Renshaw-Zellen durch reflektorische Entladungen der alpha Motoneurone. Pflügers Arch.325, 14–27 (1971)Google Scholar
  13. Hellweg, C., Meyer-Lohmann, J., Benecke, R., Windhorst, U.: Responses of Renshaw cells to muscle ramp stretch. Exp. Brain Res.21, 353–360 (1974)Google Scholar
  14. Henneman, E., Clamann, H. P., Gillies, J. D., Skinner, R. D.: Rank order of motoneurons within a pool: law of combination. J. Neurophysiol.,37, 1338–1349 (1974)Google Scholar
  15. Houk, J., Henneman, E.: Responses of Golgi tendon organs to active contraction of the soleus muscle in the cat. J. Neurophysiol.30, 466–481 (1967)Google Scholar
  16. Jansen, J. K. S., Rudjord, T.: On the silent period and Golgi tendon organs of the soleus muscle of the cat. Acta physiol. scand.62, 364–379 (1964)Google Scholar
  17. Matthews, P. B. C.: The reflex excitation of the soleus muscle of the decerebrate cat caused by vibration applied to its tendon. J. Physiol.184, 450–472 (1966)Google Scholar
  18. Mense, S.: Nervous structures mediating muscular nociception in the cat. Proceedings of the International Union of Physiological Sciences Vol. 12, 581 (1977)Google Scholar
  19. Paintal, A. S.: Functional analysis of group III afferent fibres of mammalian muscles. J. Physiol.152, 250–270 (1960)Google Scholar
  20. Paintal, A. S.: Participation by pressure-pain receptors of mammalian muscles in the flexion reflex. J. Physiol.156, 498–514 (1961)Google Scholar
  21. Piercey, M. F., Goldfarb, J.: Discharge patterns of Renshaw cells evoked by volleys in ipsilateral cutaneous and high threshold muscle afferents and their relationship to reflexes recorded in ventral roots. J. Neurophysiol.37, 294–302 (1974)Google Scholar
  22. Pompeiano, O., Wand, P., Sontag, K. H.: Excitation of Renshaw cells by orthodromic group Ia volleys following vibration of extensor muscles. Pflügers Arch.347, 137–144 (1974)Google Scholar
  23. Pompeiano, O., Wand, P., Sontag, K. H.: Response of Renshaw cells to sinusoidal stretch of hindlimb extensor muscles. Arch. ital. Biol.113, 205–237 (1975a)Google Scholar
  24. Pompeiano, O., Wand, P., Sontag, K. H.: The relative sensitivity of Renshaw cells to orthodromic group Ia volleys caused by static stretch and vibration of extensor muscles. Arch. ital. Biol.113, 238–279 (1975b)Google Scholar
  25. Pompeiano, O., Wand, P., Sontag, K. H.: The sensitivity of Renshaw cells to velocity of sinusoidal stretches of the triceps surae muscle. Arch. ital. Biol.113, 280–295 (1975c)Google Scholar
  26. Ross, H. G., Cleveland, S., Haase, J.: Quantitative relation of Renshaw cell discharges to monosynaptic reflex height. Pflügers Arch.332, 73–79 (1972)Google Scholar
  27. Ross, H. G., Cleveland, S., Wolf, E., Haase, J.: Changes in the excitability of Renshaw cells due to orthodromic tetanic stimuli. Pflügers Arch.344, 299–307 (1973)Google Scholar
  28. Ross, H. G., Cleveland, S., Haase, J.: Contribution of single motoneurones to Renshaw cell activity. Neurosci. Lett.1, 105–108 (1975)Google Scholar
  29. Ross, H. G., Cleveland, S., Haase, J.: Quantitative relation between discharge frequencies of a Renshaw cell and an intracellularly depolarized motoneuron. Neurosci. Lett.3, 129–132 (1976)Google Scholar
  30. Ryall, R. W., Piercey, M. F.: Excitation and inhibition of Renshaw cells by impulses in peripheral afferent nerve fibers. J. Neurophysiol.34, 242–251 (1971)Google Scholar

Copyright information

© Springer-Verlag 1978

Authors and Affiliations

  • Radmila Anastasijević
    • 1
  • J. Vučo
    • 1
  1. 1.Institute for Medical ResearchBeogradYugoslavia

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