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有关肋间动脉变异报道比较少见,作者在解剖1具中年男性尸体时,见其右侧肋颈干分支及分布范围异常,报道如下:该例尸体右肋颈干起自锁骨下动脉第2部分,外径为1.5mm,于胸廓后内侧壁往外下行走,在第1肋骨颈处发出上、下两条分支。上支外径1.1 mm,为颈深动脉,向内上走行。下支外径1.2 mm,为最上肋间动脉,向外下行走于第2肋骨角处发出第1、2肋间动脉,分别紧贴第2肋骨上、下缘行走,外径均为0.9 mm。此后经第2肋间隙向内下行至第2胸椎前。最上肋间动脉起始处背面发出一外径为1.0 mm的分支,其向内下走行至第一胸椎下缘后紧贴脊柱前面向下行至第2胸椎下缘,与最上肋间动脉终末
Report on the intercostal artery variation is relatively rare, the author in the anatomy of a middle-aged man’s body, see the right side of the rib neck branch and the distribution of abnormalities are reported as follows: The case of the right rib cage from the right trunk stem from the subclavian artery 2 Part of the outer diameter of 1.5mm, in the thoracic posterolateral wall to walk down in the first rib neck issue two upper and lower branches. The diameter 1.1 mm on the branch, the neck deep arteries, walking inward. The outer diameter of the lower branch 1.2 mm, is the most intercostal artery, walking outwards in the corner of the second rib issue 1,2 intercostal artery, respectively, close to the second rib on the lower edge of walking, the outer diameter of 0.9 mm . After that, the second intercostal space downwards to the second thoracic anterior. The uppermost intercostal artery at the beginning of the back of the issue of a 1.0 mm diameter branch, which walked down to the bottom of the first thoracic anterior close to the anterior descending spine to the second lower edge of the thoracic vertebra, and the intercostal artery terminal