作者在解剖一具成年男性尸体标本时,发现主动脉弓凸侧有4个分支,其中一条相对细小的分支为左侧颈升动脉(图1),现报道如下:在该例标本的主动脉弓凸侧,由右向左分别发出头臂干、左颈总动脉、左颈升动脉和左锁骨下动脉。左颈升动脉在左锁骨下动脉根部稍前方偏内侧起始,上 When dissecting an adult male corpse, four branches were found on the convex side of the aortic arch. One of the relatively small branches was the left cervical ascending artery (Fig. 1) and is reported as follows: In the aortic arch side of the specimen, From right to left were issued brachiocephalic trunk, left common carotid artery, left cervical ascending artery and left subclavian artery. Left carotid artery in the left subclavian artery root slightly anterior medial to the beginning, on