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作者在制作胸腹后壁标本过程中,发现一具4岁男性童尸胸腹后壁三处动脉血管发生变异.l左侧最上肋间动脉与第三肋间后动脉共干,直接发自胸主动脉:该动脉干于左侧第五胸肋关节前方发自胸主动脉,行向胸后壁上份之外上方,依次跨越左侧第四胸肋关节前方、第三胸肋关节前外侧,于第三肋肋角上方人第二肋间隙,主干延续为第二肋间后动脉.主干长 2.7cm,起点处外径0.18cm.此干在第三肋肋角前方发出一细小支,下行人第三肋间隙,成为第三肋间后动脉;在人第二肋间隙前,向上发出一细小支,绕第二肋前方上行人第一肋间隙,成为第一肋间后动脉.未见左肋颈干发出最上肋间动脉.
The author in the production of thoracoabdominal wall specimens during the discovery of a 4-year-old male post-abdominal wall of the thoracic and abdominal wall of the three vascular variability.l Left superior intercostal artery and the third intercostal artery common stem directly from Thoracic aorta: The artery stem in front of the left fifth thoracic joint from the thoracic aorta, line to the top of the posterior wall of the chest above, in turn across the left fourth thoracic joint in front of the third thoracic anterior Outside, the second intercostal space is above the third intercostal angle, and the main trunk is the second intercostal artery.The main length is 2.7cm, the outer diameter of the starting point is 0.18cm.This stem sends out a small branch in front of the third intercostal angle , The descending third intercostal space, becoming the third intercostal artery; before the second intercostal space, issued a small upward, around the second rib in front of the first intercostal space, becoming the first intercostal artery. No left rib cage stem issued the most intercostal artery.