[Demonstration of multiple innervation of skeletal muscle fibers in the rat following localized repetitive freezing of the sciatic nerve].
The medial head of the gastrocnemius muscle of the rat was denervated by three successive freezings of the sciatic nerve at the same focal localization. After the third denervation, the compound potentials obtained during a transient period of time indicated that some muscle fibres are innervated by two or several axonal terminals. It can be concluded from the electrophysiological, histological and cytoenzymological results that this multiple innervation is polyneural and located within a single end-plate.
D000200:Action Potentials; D000818:Animals; D004558:Electric Stimulation; D005615:Freezing; D009045:Motor Endplate / Q000502:physiology; D009132:Muscles / Q000294:innervation*; D009469:Neuromuscular Junction / Q000502:physiology; D051381:Rats; D012584:Sciatic Nerve / Q000502:physiology*; D013997:Time Factors
Mise en évidence d'une innervation multiple des fibres musculaires squelettiques de rat à la suite de congélations localisées itératives du nerf sciatique.