…In the broadest sense, it is used to mean “nerves related to motor functions,” but in this case, the specific structure of motor nerves is not defined. In the narrowest sense, it refers to the motor nerves that directly reach and activate (control) muscles, that is, the nerves that synapse with muscles. However, there are also striated muscles such as skeletal muscles and cardiac muscles, as well as smooth muscles that control the movement of internal organs such as the digestive tract, uterus, and bladder, and blood vessels. … *Some of the terminology that mentions "motor nerve" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…最も広義には〈運動機能にかかわる神経〉の意味で用いられるが,この場合は具体的な構造としての運動神経は定義されていない。狭義には,筋肉に直接到達してこれを作動(支配)させる神経motor nerve,すなわち筋肉にシナプス結合する神経のことをいう。しかし,筋肉にも,骨格筋や心筋などの横紋筋のほか,消化管・子宮・膀胱などの内臓や血管の運動をつかさどる平滑筋がある。… ※「motor nerve」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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