a nerve that conveys impulses toward or to muscles or glands 同义词：motor nerve, efferent,
例句与用法
1.
Can adjust again all sorts of functions inside body ( communicate through efferent nerve adjust instruction ) , with sponsorial body complete and unified reach its to the environment suit 又能调节体内各种功能（通过传出神经传达调节指令） ，以保证人体的完整统一及其对环境的适应。
2.
For example , outside the afferent nerve fiber in week nerve passes into sensory information centre , the instruction information that efferent nerve fiber issues centre spreads effect implement , convey with the form of nerve impulse , and the biology report that nerve impulse calls behavioral potential one kind namely changes , it is the mark of nerve excitement 例如，外周神经中的传入神经纤维把感觉信息传入中枢，传出神经纤维把中枢发出的指令信息传给效应器，都是以神经冲动的形式传送的，而神经冲动就是一种称为动作电位的生物电变化，是神经兴奋的标志。
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