2 ﹒气管和左喉返神经(trachea and left recurrent laryngeal nerve)。4 ﹒左头臂静脉(left brachiocephalic vein)。5 ﹒左颈总动脉(left common carotid artery)。10 ﹒胸导管和第3胸椎体(thoracic duct and 3rd thoracic vertebral body)。于纵隔内,头臂干行于气管前方,左头臂静脉向右下行,使纵隔的左前角内移。胸导管居食管与左锁骨下动脉之间,紧邻纵隔胸膜。气管左、右侧距 ......