PMID: 8964942Mar 7, 1996Paper

A comparative study of changes operated by sympathetic nervous system activation on spindle afferent discharge and on tonic vibration reflex in rabbit jaw muscles

Journal of the Autonomic Nervous System
M PassatoreS Roatta

Abstract

The effect of sympathetic activation on the spindle afferent response to vibratory stimuli eliciting the tonic vibration reflex in jaw closing muscles was studied in precollicularly decerebrate rabbits. Stimulation of the cervical sympathetic trunk, at frequencies within the physiologic range, consistently induced a decrease in spindle response to muscle vibration, which was often preceded by a transient enhancement. Spindle discharge was usually correlated with the EMG activity in the masseter muscle and the tension reflexly developed by jaw muscles. The changes in spindle response to vibration were superimposed on variations of the basal discharge which exhibited different patterns in the studied units, increases in the firing rate being more frequently observed. These effects were mimicked by close arterial injection of the selective alpha 1-adrenoceptor agonist phenylephrine. Data presented here suggest that sympathetically-induced modifications of the tonic vibration reflex are due to changes exerted on muscle spindle afferent information.

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Citations

Dec 6, 2005·Experimental Brain Research·Paul F SowmanKemal S Türker
Oct 27, 2004·American Journal of Physical Medicine & Rehabilitation·Jin Woo ChungW D McCall
Jul 16, 2010·European Journal of Neurology : the Official Journal of the European Federation of Neurological Societies·R L Rosales, D Dressler
Aug 19, 2003·The Journal of Physiology·Vaughan G MacefieldB Gunnar Wallin
Jul 5, 2005·BMC Musculoskeletal Disorders·Nis HjortskovNils Fallentin
Jun 26, 2003·Acta Physiologica Scandinavica·D Matre, S Knardahl
Mar 13, 2014·Journal of Ethnopharmacology·Bin QiDa-qing Zhao
Jul 5, 2002·Critical Reviews in Oral Biology and Medicine : an Official Publication of the American Association of Oral Biologists·Kemal S Türker
May 3, 2018·PloS One·Lubayna S ElahiKatherine A Wilkinson
Mar 1, 2012·Asian Journal of Sports Medicine·Roya KhanmohammadiFarahnaze Ghafarinejad
Jan 18, 2013·Psychosomatic Medicine·Thomas RitzSibylle Petersen
Sep 16, 2011·Journal of Neurophysiology·Justin R DavisMark G Carpenter
Jan 12, 2021·Journal of the Peripheral Nervous System : JPNS·Guido FelicettiMarco Schieppati

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