Results 161 to 170 of about 23,201 (210)
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Beading of myelinated nerve fibers
Experimental Neurology, 1965Abstract The phenomena of beading upon stretching was studied in nerve fibers of freeze-substituted nerves. Beading appears rapidly along the length of the mammalian nerve. Nerve fibers of frogs kept at low temperatures have a crenated shape in cross section and show wrinkling in longitudinal section, but no beading is produced upon stretching them ...
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The myelinated fibers in the aortic nerve of the swine
The Anatomical Record, 1967AbstractThe aortic nerves of 24 Chester White swine were identified electrophysiologically by the synchronization of the recorded action potentials with the cardiac cycle; and the occurrence of the maximum firing rates observed on the oscilloscope during systole. The aortic nerve, thus identified, was traced to the aortic arch in two preparations.
E M, Schmidt, M W, Stromberg
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Subtotal Aplasia of Myelinated Nerve Fibers in the Sural Nerve*
Neuropediatrics, 1993Thus far, only very few cases with neuronal maldevelopment in the peripheral nervous system have been reported (Table 1). The present sporadic case manifested itself with peripheral sensorimotor polyneuropathy in early infancy. Clinical findings included pareses and hypaesthesia of distal extremities and severely reduced nerve conduction velocities ...
J M, Schröder +3 more
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Myelinated nerve fiber antenna model activation
2016 24th International Conference on Software, Telecommunications and Computer Networks (SoftCOM), 2016A myelinated nerve fiber is modeled as a straight thin wire antenna and stimulated by a current generator at the fiber beginning. The model is based on the corresponding homogenous Pocklington integro-differential equation for the perfectly conducting wire in a lossy unbounded homogenous space, where the activated node of Ranvier is modeled as a thin ...
Ivana Zulim, Vicko Doric, Dragan Poljak
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Myelinated Retinal Nerve Fibers
Journal of Clinical and Medical Images, Case Reports, 2023We report a case of a 25-year-old-woman, with no pathological history. The patient presented to ophthalmology consultation for a routine eye examination.
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Antenna model for passive myelinated nerve fiber
2015 23rd International Conference on Software, Telecommunications and Computer Networks (SoftCOM), 2015A myelinated nerve fiber, stimulated by a current generator at the fiber beginning, is modeled as a straight thin wire antenna. The model is based on the corresponding Pocklington integro-differential equation for the perfectly conducting wire in a lossy unbounded homogenous space.
Ivana Zulim +3 more
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Physiology and pathophysiology of myelinated nerve fibers
2013The chief role of the axon is that of impulse conduction, which depends on the electrical cable structure and voltage-dependent ion channels of the axonal membrane. Over recent decades, the development of specialized techniques such as patch clamping and site-directed mutagenesis have established the contribution of neuronal ion channel function to the
Matthew C, Kiernan, Ryuji, Kaji
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Measurement of the Action Potential of Myelinated Nerve Fiber
American Journal of Physiology-Legacy Content, 1955THE PEAK VALUE of the action potential of the vertebrate myelinated fiber has been previously recorded by a number of investigators. (1-5 and others). Values range from about 60-155 mv depending on the method employed. These methods may be divided into three general categories.
I, TASAKI, K, FRANK
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Progression of Retinal Nerve Fiber Myelination in Childhood
American Journal of Ophthalmology, 1994Myelination of the visual pathway has been demonstrated to occur by as early as 32 weeks of gestation and continues for several years into early childhood. In most cases, the process of myelination does not extend beyond the lamina cribrosa. We studied a boy with progressive myelination that extended beyond the lamina cribrosa to the retinal nerve ...
B H, Ali +4 more
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A model of injury potential for myelinated nerve fiber
2015 37th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC), 2015Excellent models have been described in literatures which related membrane potential to extracellular electric or magnetic stimulation and which described the formation and propagation of action potentials along the axon, for both myelinated and nonmyelinated fibers.
Guang-Hao Zhang +4 more
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