肩胛背动脉

肩胛背动脉分支较粗大，供血区域较宽；

The dorsal scapular artery was usually thick and contributed to blood supply of a large region .

结果：肩胛冈、肩胛骨内侧缘和肩肿骨外侧缘区分别主要由肩胛上动脉、肩胛背动脉、旋肩胛动脉供血。

Results : Spine of scapula , medial border and lateral border of scapula are mainly supplied respectively by suprascapular artery , dorsal scapular artery and circumflexa scapular artery .

Ⅱ区包括股与束的大部分区域，此区供血以肩胛背动脉分支及锁骨下动脉直接营养支为主。

The second zone including the divisions and the main region of the cords of the brachial plexus were supplied by direct branches of the subclavian artery or by branches originating from the dorsal scapular artery .

结果是以肩胛下胸背动脉系统为最恒定，平均长度15.43±0.504cm，起端口径平均1.58±0.122mm。

Our findings showed that the subscapular-thoracodorsal vascular system was the most constant among the 3 systems . Its average length was 15.43 ± 0.504 cm , average diameter at its origin was 1.58 ± 0.122 mm .

结果：肩胛下动脉分支有3种类型：①肩胛下动脉直接分出旋肩胛动脉和胸背动脉，占52.5%；

Results : In 52.5 % specimens the subscapular artery directly sent off the circumflex scapular artery and thoracodorsal artery .