PMID: 10084704Mar 20, 1999Paper

Electrophysiological and morphological properties of neurons in the ventral horn of the turtle spinal cord

Journal of Physiology, Paris
J C McDonaghD G Stuart

Abstract

In this report, we present recent findings on the electrophysiological and morphological properties of spinal motoneurons (MNs) and interneurons (INs) of the adult turtle which were studied in slices of the spinal cord. The range of values for the measured electrophysiological parameters in 96 tested cells included: resting potential, -57 to -83 mV; input resistance, 2.5-344 M omega; time constant, 2.5-63 ms; rheobase current, 0.04-5.3 nA; after-hyperpolarization (AHP) duration, 72-426 ms; AHP half-decay time; 11-212 ms; and, slope of the stimulus current-spike frequency relationship, 3.4-235 Hz/nA. For another 20 cells, we made both morphological and electrophysiological measurements (the latter values within the above ranges). Their ranges in morphological properties included: soma diameter, 20-54 microm; soma surface area, 299-2045 microm2; soma volume, 2.3-45 microm3 x 10(4); rostro-caudal dendritic projection distance, 150-1200 microm; and, sum of dendritic lengths, 1.5-16 microm x 10(3). The emphasized findings include: 1) the quality and robustness of the intracellular recordings, which enabled accurate measurement of the action potential's shape parameters (spike, afterhyperpolarization [AHP]); 2) the substantial AHP of...Continue Reading

References

Jan 1, 1979·The American Journal of Physiology·A R Luff, U Proske
Jul 1, 1976·The Journal of Physiology·A R Luff, U Proske
Jan 1, 1992·Progress in Neurobiology·Elzbieta Jankowska
Jan 1, 1992·Brain, Behavior and Evolution·J R Fetcho
Apr 1, 1988·The Journal of Physiology·J. HounsgaardI Mintz
Apr 1, 1988·The Journal of Physiology·J. Hounsgaard, I Mintz
Feb 22, 1985·Proceedings of the Royal Society of London. Series B, Containing Papers of a Biological Character·D A TongeP Jesani
Aug 1, 1988·Journal of Neurophysiology·J S JodkowskiA J Berger
Mar 1, 1972·The Journal of Physiology·M E Rosenberg
Nov 1, 1971·Journal of Neurophysiology·H Teräväinen
Dec 1, 1984·The Journal of Physiology·B Gustafsson, M J Pinter
Aug 1, 1995·The Journal of Physiology·F VianaA J Berger
Jun 1, 1995·Trends in Neurosciences·Sten GrillnerP Wallén
May 1, 1995·Journal of Neurophysiology·A SawczukM D Binder
Nov 1, 1994·Journal of Neurophysiology·Robert E BurkeA K Moschovakis
Jun 1, 1994·Journal of Neurophysiology·M WheatleyV Lawson
Dec 1, 1993·Journal of Neurophysiology·J T Buchanan
Jan 1, 1993·Annual Review of Neuroscience·K G Pearson
Dec 1, 1996·Acta Physiologica Scandinavica·M Skydsgaard, J. Hounsgaard
Feb 1, 1997·Journal of Neurophysiology·Gytis SvirskisJ. Hounsgaard
Jan 1, 1992·The European Journal of Neuroscience·J. Hounsgaard, O. Kjaerulff
Dec 29, 1955·The Journal of Physiology·K FRANK, M G FUORTES
Nov 1, 1960·The Journal of Physiology·J C ECCLESA LUNDBERG
Sep 1, 1963·The American Journal of Physiology·S GELFAN, I M TARLOV

Citations

Feb 16, 2005·Journal of Comparative Physiology. A, Neuroethology, Sensory, Neural, and Behavioral Physiology·E K StaufferR M Reinking
May 21, 2005·Journal of Comparative Physiology. A, Neuroethology, Sensory, Neural, and Behavioral Physiology·R B GormanD G Stuart
Apr 1, 1984·Brain Research Bulletin·M J KellyR L Eskay
Dec 15, 2010·Brain Research·Mantas GabrielaitisAidas Alaburda
Mar 20, 2012·Brain Research·Rokas BuisasAidas Alaburda
Jun 28, 2017·The Journal of Physiology·Ramunas Grigonis, Aidas Alaburda
Nov 2, 2002·The Journal of Comparative Neurology·J C McDonaghDouglas G Stuart
Dec 29, 2006·Journal of Comparative Physiology. A, Neuroethology, Sensory, Neural, and Behavioral Physiology·E K StaufferD G Stuart
Jul 2, 2002·Journal of Neurophysiology·T G HornbyDouglas G Stuart
Sep 1, 2017·Journal of Neurophysiology·Lea Ziskind-Conhaim, Shawn Hochman

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