异物存留部位：胸锁乳突肌内6例，甲状腺内3例，气管旁1例，颈鞘旁2例，甲状软骨浅层3例，会厌前间隙1例。

Site: 6 cases in sternocleidomastoid muscle, 3 cases in thyroid, 1 cases in para tracheal, 2 cases near carotid sheath, 3 cases in superficial lamella, 1 case in pre-epiglottis space.

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第二腮裂囊肿位于颈动脉鞘外侧、胸锁乳突肌前内侧。

The second BCC is centered lateral to the carotid sheath and anteromedial to the sternocleidomastoid muscle.

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摘要： 患者麻醉满意后，暴露左侧颈动脉鞘，它一般沿胸锁乳突肌的前缘延伸。

Introduction: After administering appropriate anesthesia to the patient, expose the left carotid sheath as it extends along the anterior border of the sternocleidomastoid muscle.

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If this is the particular kind of axon that is 'myelinated', then it might have a layer of a special substance called myelin in sheathing the axon.

假设这是一种特殊的有髓鞘的轴突,它表面上会像鞘一样地包裹上一层,称为鞘磷脂的特殊物质

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Surrounding the axon is a myelin sheath, which is actually just insulation.

髓鞘将轴突包裹起来,实际上形成了一个绝缘层

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