...式 讲习 授课 时间 2006 年3 月10 日 学时 5 学时 授课题目： 躯干肌 （ Muscles of Trunk ）头颈肌（Muscles of Head and Neck） 目的要求： 1． 掌握背肌（斜方肌、背阔肌、竖脊肌）的位置、起止和作用。
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The long muscles of head and neck are anterior to the cervical vertebrae, most of them in the sulcus.
头颈长肌位颈椎前方，大部分位于颈椎前外侧沟内。
To loosen up the muscles at the base of your neck while sitting at your desk, bring one ear to your shoulder and let the weight of your head hang.
坐在座椅上放松你脖颈下部的肌肉，将耳朵靠向你的肩膀，将头的重量悬着。
Conclusion It could be concluded that mandibular deviation affects the symmetry of both facial and head-cervical muscles symmetry and might result in the deviation of head-neck and shoulder posture.
结论下颌偏斜影响咀嚼肌、颈肩背部肌肌电的对称性并可能导致头颈、双肩姿势的偏斜。
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