ulnar branch

Objective: To explore the positional relationship between Acupoint Hegu ( LI4) and deep branch of ulnar nerve.

目的：探讨合谷穴与尺神经深支的位置关系。

OBJECTIVE: To investigate distally arterial perforating branch of ulnar margin of forearm and provide anatomical bases for designing distal pedicled flap of nutrient vessel in basilic vein of ulnar margin of forearm.

目的：研究前臂尺侧缘远端的动脉穿支，为前臂尺侧缘贵要静脉营养血管远端蒂复合瓣的设计提出解剖学理论。

The direction of the branches of the terminal segment of deep branch of ulnar nerve may have some relation to the different curative effect and needling sensation at the time of puncturing Hegu ( LI4).

尺神经深支终末段的分支走行方向，可能与临床上针刺合谷穴时向不同方向进针有不同的疗效和针感具有一定的关系。

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。

The depth from the inserted point of the skin to the point where the terminal segment of deep branch of ulnar nerve penetrated through the adductor pollicis muscle, was ( 3.53 ± 0.24) cm.

皮肤进针点与尺神经深支终末段穿拇收肌处的距离是（3.53±0.24）cm。