左纵沟前方有肝圆韧带（ligamentum teres hepatis），是胎儿时期脐静脉闭锁后的遗迹；后方有静脉韧带（ligamentum venosum)，由胎儿时期的静脉导管响后而成。
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Umbilical vein, ductus venosus and venous ligament and ligamentum teres hepatis were anatomized, observed and measured.
解剖观测脐静脉、静脉导管及肝圆韧带、静脉韧带等。
Methods: Umbilical vein, ductus venosus and venous ligament and ligamentum teres hepatis were anatomized, observed and measured.
方法：解剖观测脐静脉、静脉导管及肝圆韧带、静脉韧带等。
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