这个词是什么意思？
Large veins on either side of the root of the neck formed by the junction of the internal jugular and subclavian veins. They drain blood from the head, neck, and upper extremities, and unite to form the superior vena cava.
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D016121 · MeSH 2026。
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