| 词汇 | motor-neuron |
| 释义 | motor neuron noun[ C ] biology specializeduk /ˌməʊ.tə ˈnjʊə.rɒn/ us /ˌmoʊ.t̬ɚ ˈnʊr.ɑːn/ a nerve cell that sends messages to muscles or glands (= organs that produce chemical substances in the body)运动神经元 Cells actin anaphase anti-platelet assort axoplasm histochemistry histography homologous chromosomes infiltration intercellular nerve fibre neurofibril neurofibrillary neuroglia neuroglial tetrad thrombocyte thymocyte turgor unciliated You can also find related words, phrases, and synonyms in the topics: The brain & nervous system motor neuron | American Dictionarymotor neuron noun[ C ] us/ˈmoʊ·t̬ər ˈnʊr·ɑn/ biology a nerve cell that sends messages to muscles or glands (= organs that produce chemical substances in the body) Examples of motor neuronmotor neuron Other features of motorneuron disease are generalized muscular weakness, wasting, fasciculation and brisk reflexes, though sensation is intact. Pathologically, at 120 days of age, mice treated with minocycline had reduced motorneuron loss, vacuolization, and microglial activation compared to control animals. Our mouse model of motorneuron degeneration will provide access to new genes involved in the pathology of these cells. Reduction of the naturally occurring motorneuron loss by enlargement of the periphery. The aetiology is likely to be multifactoral, involving interplay of several mechanisms to initiate disease and propagate the spread of motorneuron cell death. Experiments in transgenic mice have revealed a key role for neurofilaments in normal motorneuron function. The final mechanism of motorneuron death in amyotrophic lateral sclerosis is likely to be via a process resembling apopotosis. Here we review the evidence for the main pathogenic mechanisms and outline how they might interact to cause motorneuron death. Our mouse model of motorneuron degeneration carries a mutation in one of these genes. Pathologically, minocycline treated mice had a reduction in activation of microglia and motorneuron degeneration. Spinal stenosis secondary to osteoarthritis gives a characteristic pattern of upper and lower motorneuron signs. Direct recording and decoding of multiple motorneuron signals to derive kinematic information is not yet practical. Some features, such as onset at a young age (below 40 years) or presentation with purely upper or purely lower motorneuron features, are associated with longer survival. Apart from the muscle twitching (which may be confused with fasciculation or denervation, leading to an erroneous diagnosis of motorneuron disease) physical examination may be normal. This review, however, is confined to work with surface electrodes using single or dual channels of stimulation to correct dropped foot in subjects suffering from upper motorneuron lesions. See all examples of motor neuron These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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