护具的一种配件(属于锁子甲)。使用于古代和中世纪,用以保护军人的后脑、脖颈、肩膀和肩肿骨兔受冷兵器伤害。在套环盔甲中,颈甲成锁状圆定茬军人头盔边缘,垂于双肩。在叶片甲中,颈甲用环索连接整块的铁板或者数块金属板制成。在中世纪无缝隙的骑士盔甲中,颈甲是防护装备的主要组成部分。颈甲连接叶片甲、披膊和头盔,按尺寸和武士体形精工制作,分前后两部分,左面用活动铰链联接,石面用暗拍联接。
椎动脉和甲状颈干的来源相似。
The origin of the vertebral artery the thyrocervical trunk is very similar.
甲状舌管囊肿及鳃裂囊肿呈单房性,淋巴管瘤多为多房性,颈淋巴结囊性转移瘤伴有壁结节。
Most of the thyroglossal duct cyst and branchial cleft cyst were monolocular, while lymphangioma multilocular. Metastatic tumors of the cystic lymph nodes were always associated with wall nodule.
结论甲舌囊肿与瘘管为颈前正中部的先天性疾病。
Conclusion Thyroglossal cyst and fistula is a congenital disease which lies in the middle and anterior neck.
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