transverse branch

The origin point, transverse diameter of anterior branch and posterior branch of axillary nerve and musculocutaneous nerve were dissected and measured.

测量肌皮神经分支及腋神经前、后支起点、横径；

Two hours later, dissect the specimen and observe the branch of the thyrocervical trunk and the branches, starting positions, pathway, and the diameters of the transverse cervical artery and the supraclavicular artery, and also observe the concomitant vein.

2小时后，解剖和观察甲状颈干的分支情况及颈横动脉和锁骨上动脉的分支情况、起始位置、行程和管径，观察其伴行静脉情况。

Tensor fasciae latae was supplied by ascending branch, the percentage was about 77%, by both ascending and transverse branch about 23%;

阔筋膜张肌由升支供血占77%，升横支共同供血占23%；

The terminal segment of deep branch of ulnar nerve drilled through between the transverse head and oblique head of adductor muscle of thumb, and then it came into the posterior space of adductor muscle of thumb.

尺神经深支终末段穿拇收肌横头与拇收肌斜头之间入拇收肌后间隙，并在此间隙内发出各肌支。

Conclusion The anatomical basis of the compression of the dorsal branch of the ulnar nerve is repetitive traction to this nerve during wrist movement, and the compression of the transverse branch is the main cause of ulnar wrist pain.

结论腕关节反复屈伸时尺神经手背支尤其是横支被牵拉和压迫是造成尺神经手背支卡压的解剖学基础。