英语词汇“node-of-ranvier”的音标、意思、用法及中文翻译-反思网

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词汇	node-of-ranvier
释义	node of Ranvier noun[ C ] anatomy specializeduk /ˈnəʊd əv ˈrɒn.viː.eɪ/ us /ˈnoʊd əv rɑːn.viːˈeɪ/ one of the spaces in the myelin sheath(= a layer that surrounds and protects a nerve) that exist at regular distances along a nerve: Myelin is a spiral of specialized cell membrane that surrounds axons, except for small gaps - the nodes of Ranvier. The exposed areas are called nodes of Ranvier and they contain very high densities of sodium channels. Neurofibrillar degeneration occurs for a minimum of two to three nodes of Ranvier proximal to the point of injury. The small, uncovered areas of axon between Schwann cells are called nodes of Ranvier. When nerve fibres are cut across, the central ends of the fibres degenerate as far as the first node of Ranvier. SMART Vocabulary: related words and phrases Substances & structures in the body abductor accessorius ACL actin adductor fundus funiculus fusiform glomerular glomerulus myosin navicular neuroendocrine neurohormonal neurohormone tendinous tendinum tendo tensor Th You can also find related words, phrases, and synonyms in the topics: The brain & nervous system
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