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


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


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


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

Related Concepts

Trending Feeds


Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Hereditary Sensory Autonomic Neuropathy

Hereditary Sensory Autonomic Neuropathies are a group of inherited neurodegenerative disorders characterized clinically by loss of sensation and autonomic dysfunction. Here is the latest research on these neuropathies.

Spatio-Temporal Regulation of DNA Repair

DNA repair is a complex process regulated by several different classes of enzymes, including ligases, endonucleases, and polymerases. This feed focuses on the spatial and temporal regulation that accompanies DNA damage signaling and repair enzymes and processes.

Glut1 Deficiency

Glut1 deficiency, an autosomal dominant, genetic metabolic disorder associated with a deficiency of GLUT1, the protein that transports glucose across the blood brain barrier, is characterized by mental and motor developmental delays and infantile seizures. Follow the latest research on Glut1 deficiency with this feed.

Separation Anxiety

Separation anxiety is a type of anxiety disorder that involves excessive distress and anxiety with separation. This may include separation from places or people to which they have a strong emotional connection with. It often affects children more than adults. Here is the latest research on separation anxiety.

KIF1A Associated Neurological Disorder

KIF1A associated neurological disorder (KAND) is a rare neurodegenerative condition caused by mutations in the KIF1A gene. KAND may present with a wide range and severity of symptoms including stiff or weak leg muscles, low muscle tone, a lack of muscle coordination and balance, and intellectual disability. Find the latest research on KAND here.

Regulation of Vocal-Motor Plasticity

Dopaminergic projections to the basal ganglia and nucleus accumbens shape the learning and plasticity of motivated behaviors across species including the regulation of vocal-motor plasticity and performance in songbirds. Discover the latest research on the regulation of vocal-motor plasticity here.