The posterior humeral circumflex artery common arises from the subscapularartery mostly.
旋肱后动脉大多与肩胛下动脉共干。
2
The subscapularartery has a definite and strong branch to the infraspinatus muscle, and a long collateral branch to the long head of the triceps cervical and the tensor antebrachii.
肩胛下动脉有恒定而发达的肌支至冈下肌，及一长的侧支至前臂筋膜张肌和臂三头肌长头；
3
The circumflex scapular artery and vein were complicated by the subscapular nerve at the front meatus of the trilateral foramen.