The formation of topographical maps in developing rat gastrocnemius muscle during synapse elimination.
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منابع مشابه
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Competitive mechanisms underlying synapse elimination in the lumbrical muscle of the rat.
The process of neuromuscular synapse elimination has been studied in the fourth deep lumbrical (4DL) muscle of the rat, a preparation which offers technical advantages for some types of experimental work. Studies have been performed both during development and in adult denervated muscles undergoing reinnervation. Results indicate that synapse elimination is dependent upon competition between mo...
متن کاملSelective elimination of cross-compartmental innervation in rat lateral gastrocnemius muscle.
The calf muscles of the rat hindlimb are composed of smaller entities, called neuromuscular compartments, which are the territories of muscle innervated by a single, naturally occurring primary (first-order) muscle nerve branch. While it is quite clear that a precise connectivity exists very early in development between motoneuron pools and individual muscles, the mechanisms responsible for pro...
متن کاملHormonal regulation of motor unit size and synaptic strength during synapse elimination in the rat levator ani muscle.
Previous anatomical studies suggest that androgen regulates synapse elimination in the androgen-sensitive levator ani(LA) muscle of the rat. Androgen treatment beginning on postnatal day 7 (P7) prevents some of the normal loss of multiaxonal innervation in this muscle. The present study used physiological techniques to measure the number and size of LA motor units during the synapse elimination...
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ژورنال
عنوان ژورنال: The Journal of Physiology
سال: 1988
ISSN: 0022-3751
DOI: 10.1113/jphysiol.1988.sp016973