V2EX myotome

Myotome

定义 / Definition

myotome(肌节/肌节区)指由单一脊神经根(或脊髓节段)支配的一组骨骼肌(或肌群)。临床上常用来评估神经根受损时的运动功能。

例句 / Examples

The doctor tested the myotome by checking my ankle strength.
医生通过检查我的踝部力量来测试对应的肌节。

In suspected radiculopathy, mapping weakness to a specific myotome helps localize the affected nerve root.
在怀疑神经根病变时,把无力表现对应到特定肌节有助于定位受累的神经根。

发音 / Pronunciation (IPA)

/ma..tom/

词源 / Etymology

来自希腊语构词:myo- 表示“肌肉”(源自 mys,“肌肉”),**-tome** 表示“切割、分段/区段”(源自 tomē,“切割”)。合起来可理解为“与肌肉分区/节段相关的结构”,用于描述与脊髓节段对应的肌肉支配区域。

相关词 / Related Words

文学与经典著作中的用例 / Notable Works

  • Gray’s Anatomy(《格雷氏解剖学》)在神经解剖与临床检查章节中讨论肌节与神经根定位。
  • Clinically Oriented Anatomy(《临床应用解剖学》)常以肌节(myotome)配合皮节(dermatome)讲解神经根体格检查。
  • Netter’s Atlas of Human Anatomy(《奈特人体解剖图谱》)在脊神经与肌肉支配的图示说明中出现该术语。
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