Results 211 to 220 of about 13,686 (260)
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The Pyramidal Tract. A Study of Retrograde Degeneration in the Monkey
The Journal of Nervous and Mental Disease, 1942Since Nissl 1 published his original article, the retrograde method has been widely employed in searching for the cells of origin of both central and peripheral neurons. On the basis of results obtained with this procedure, it is assumed that the power of withstanding axon injury is less in central than in peripheral neurons.
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Experimental Lesions of the Pyramidal Tract
The Journal of Nervous and Mental Disease, 1934The experiments reported here represent an attempt to produce lesions in the corticospinal or pyramidal tracts without damage to other motor systems. This cannot be attained by operative lesions on the motor cortex, for there descend from here many other efferent fibers besides the pyramidal, as Mellus 1 long ago demonstrated.
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Archives of Neurology & Psychiatry, 1942
The postnatal changes in the performance of the striated muscles of man must depend on concomitant alterations in the efferent structures of the nervous system and muscles. The pyramidal tract, because of its isolation and accessibility in the pyramids, offers an opportunity to compare the development of somatic motor neurons and function subsequent to
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The postnatal changes in the performance of the striated muscles of man must depend on concomitant alterations in the efferent structures of the nervous system and muscles. The pyramidal tract, because of its isolation and accessibility in the pyramids, offers an opportunity to compare the development of somatic motor neurons and function subsequent to
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Archives of Neurology & Psychiatry, 1939
Because of the lack of agreement existing in respect to the origin of the pyramidal tract, it was thought that the application of a refined silver stain to the lower part of the human pyramid might give a clue as to its cells of origin and, in addition, furnish information about the size and number of its component fibers.
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Because of the lack of agreement existing in respect to the origin of the pyramidal tract, it was thought that the application of a refined silver stain to the lower part of the human pyramid might give a clue as to its cells of origin and, in addition, furnish information about the size and number of its component fibers.
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Archives of Neurology & Psychiatry, 1941
The present investigation is a continuation of anatomic studies on the pyramidal tract of man and is directed at a classification of the large cells of the motor cortex (area 4 of Brodmann). In spite of the fact that the cells designated as Betz or giant cells are probably the best known in the cerebral hemisphere, it is not possible to give an ...
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The present investigation is a continuation of anatomic studies on the pyramidal tract of man and is directed at a classification of the large cells of the motor cortex (area 4 of Brodmann). In spite of the fact that the cells designated as Betz or giant cells are probably the best known in the cerebral hemisphere, it is not possible to give an ...
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1997
Abstract Pure X-linked spastic paraplegia, MASA, and X-linked hydrocephalus due to an acqueduct stenosis, seem to be the result of the mutations of the same gene called Li-CAM. The same mutation in a single family can result in different phenotypes.
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Abstract Pure X-linked spastic paraplegia, MASA, and X-linked hydrocephalus due to an acqueduct stenosis, seem to be the result of the mutations of the same gene called Li-CAM. The same mutation in a single family can result in different phenotypes.
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