收缩时可使声带内收、声门关闭的肌肉有A．环杓后肌B．环杓侧肌C．杓肌D．甲杓肌E．环甲肌

作者: rantiku 人气: - 评论: 0

问题收缩时可使声带内收、声门关闭的肌肉有

选项 A．环杓后肌 B．环杓侧肌 C．杓肌 D．甲杓肌 E．环甲肌

答案 BCD

解析：环杓侧肌和杓肌为声带内收肌，收缩使声带内收声门闭合。甲杓肌为声带松驰肌，收缩时使声带松弛，同时兼有声带内收、关闭声门的功能。

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