断掌的神经断层解剖
断层解剖,,手掌；神经；断层解剖,1材料与方法,2结果,3讨论,参考文献：
摘要：目的目的 为临床断掌再植提供断层解剖学资料。方法新鲜成人男性手标本30例，由腕远侧纹中点至中指掌指皱纹中点切割成7个断面，测量手掌部各神经的断面面积，分析其走行、分支、分布规律。结果 第一、二断层内正中神经横径(6.7±1.0)mm,面积(13.8±0.8)mm2；中神经返支发自第二断层内,于三、四断层间发出拇指掌侧固有神经，五、六断层间分为指掌侧固有神经。第一断层内尺神经发出尺神经深支，伴尺动脉深支，行向桡侧至第二断层。尺神经80%于第一断层内发出小指尺掌侧固有神经与第四指掌侧总神经，第四指掌侧总神经在三、四断层处分出小指掌桡侧固有神经，无名指掌尺侧固有神经。结论一、二断层可视为神经分布的混合区，以远各断层主要为神经分布的感觉区。各断层间横径与横截面积可为神经移植提供解剖学依据。把断掌分为掌近部、掌中部、掌远部三部的分型方法,概括了手掌部神经分布特点，较为理想。关键词：手掌；神经；断层解剖
The nerve transected anatomy of a harmed severely palm
LI Lei, HAN Feng, WANG Wei, NIU Songqing, CHANG Hongxian, PENG Dong
(Department of Human Anatomy, Jilin Medical College, Jilin City,Jilin Province,132013,China)
Abstract:ObjectiveTo provide the transected anatomical data for the clinical retransplation of a palm harmed severely. MethodsThe 30 newlyunfixed adult cadaver hands were cut into 7 identical parts from the midpoint of the distal wrist crease to the midpoint of the proximal transverse crease of the third finger. In every section, the area, traveling, branches and distribution of nerves were observed, measured and analyzed.Results The transverse diameter (TD) of the median nerve was (6.7±1.0) mm amd the area was (13.8±0.8) mm2 In the first and the second sections. The recurrent branch of the median nerve appeared in the second section. The palmar proper digital nerve of thumb emerged between the third and the fourth section, and the palmar proper digital nerve occurred between the fifth and the sixth section. Within the first section, about 80 % of vlnar nerve gave off two branches: the palmar proper digital nerve of vlnar side of little finger and the fourth palmar common digital nerve. Within the third or the fourth section, the fourth palmar common digital nerve fell into the palmar proper digital nerve of radilis of little finger and the palmar proper digital nerve of vlnar side of ringfinger. The dorsal branches of the vlnar nerve and the superficial branches of the radial nerve innervated the medial and lateral halves of the dorsum. ConclusionThe experimental results supported the classification method that transverse palm should be divided into 3 types: nearpalmpart, midpalmpart and farpalmpart. ......
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