CONTRACTILE PROPERTIES OF THE TONGUE MUSCLES: EFFECTS OF HYPOGLOSSAL NERVE
AND EXTRACELLULAR MOTONEURON STIMULATION IN RAT.
Gilliam, Edwin E., and Stephen J. Goldberg.
Department of Anatomy, POB 980709, Medical College of Virginia, Virginia
Commonwealth University, Richmond, Virginia 23298-0709.
APStracts 2:0108N, 1995.
SUMMARY AND CONCLUSIONS
1. Stimulation of the whole hypoglossal (XII) nerve or its medial or lateral
branch in the rat produced two major movements of the tongue as measured with
a single force transducer attached to the tip of the tongue. Stimulation of
the whole XII th nerve or the lateral branch produced a retrusion of the
tongue while stimulation of the medial branch produced a protrusion. 2. The
average retrusive twitch tension evoked by stimulation of the XII th nerve
(11.25 g) or lateral branch (12.02 g) was significantly greater (p
Received 25 March 1994; accepted in final form 30 March 1995.
APS Manuscript Number J154-4.
Article publication pending J. Neurophysiol.
ISSN 1080-4757 Copyright 1995 The American Physiological Society.
Published in APStracts on 1 May 1995.