变异增大的正中动脉,可能成为前臂的一条动脉主干。姜宗来总结国人1330侧标本,出现率为2.48±0.43%,Adachi 报道日本人610例标本中出现8.2%,作者在解剖中见到三例,为积累本国人体形态学资料,报道如下。例一,男性,左上肢,尺动脉起始处下36.5mm 发出外径1.2mm 的正中动脉, The mid-sized artery with increased variability may become an artery of the forearm. Jiang Zonglai summarize 1330 Chinese people side specimens, the incidence was 2.48 ± 0.43%, Adachi reported Japanese 610 cases appeared in 8.2% of the sample, the author saw three cases in the anatomy, in order to accumulate national human body morphology data, reported as follows. Example 1, male, left upper limb, ulnar artery at the beginning of 36.5mm issued 1.2mm in diameter of the middle artery,