摘要
目的 :研究桡神经肱肌支的解剖特点。方法 :解剖 136侧固定尸体的上肢 ,寻找并分别测量各型肌支的起始点、入肌点、长度、横径及其与桡神经主干的夹角 ,观察其行程特点。结果 :桡神经肱肌支的出现率是 2 5 .7% (35侧 ) ,肱肌支的出现以单侧多见 ,与性别和侧别无关。根据肱肌支与肱骨长轴的夹角将其分为升支、水平支及降支三种类型。肌支的起点在Hunter’s线下 1.40cm至Hunter’s线上 11.70cm ,入肌点在Hunter’s线上 0 .6 0～ 11.70cm ,肌支的长度为 0 .2 0～ 4.6 8cm ,横径是 0 .4～ 2 .4mm ,与桡神经主干的夹角在 5～171°。结论 :桡神经肱肌支的存在较普遍 (约 1/4) ,行上臂、肘部手术时 ,应对其加以保护。
Objective:To study the anatomical characteristics of the brachialis branches of radial nerve.Methods:136 upper extremities of fixed cadavers were dissected. The original entering points of muscle branches,the length,the diameter, the angles of the radial nerves and the angles of the humerus of the brachialis branches of radial nerve were measured and on their directions and characteristics were observed.Results:The appearance rate of brachialis branches of radial nerve is 25.7% in 35 specimens,which are often seen on one side of the extremities.It is not related to sex or side of extremity. According to the results measured on the the angles of the humerus,they are divided as ascending,horizontal and descending.The origions of muscular branches are between 1.40cm below Hunter's line and 11.70cm above Hunter's line,and the point of entering muscle is 0.60～11.70cm above Hunter's line.The length of muscle branches is 0.20～4.68cm with the diameter of 0.4～2.4mm.The angles of the radial nerve is 5～171°.Conclusion:The brachialis branches of the radial nerve are commonly existing(about 1/4). It must be protected when the operation on the upper arm or on the elbow is performed.
出处
《温州医学院学报》
CAS
2001年第2期76-77,共2页
Journal of Wenzhou Medical College
关键词
桡神经
肱肌支
解剖学
radial nerve
the brachialis branch
anatomy
