环杓后肌神经的显微外科解剖  

MICROSURGICAL ANATOMY OF THE NERVE OF THE POSTERIOR CRICOARYTENOID MUSCLE

作　　者：孙继虎[1] 黄瀛[1] 毛增荣 卢范 

机构地区：[1]第二军医大学解剖学教研室

出　　处：《解剖学杂志》1991年第2期113-116,共4页Chinese Journal of Anatomy

摘　　要：本文借助SXP-Ⅰ型手术显微镜观察了30例成人喉返神经终末支支配环杓后肌的分支,并用改良的karnovsky-Roots AchE染色方法鉴定了喉返神经终末分支的性质。结果表明,喉返神经以前、后二终支入喉,前支是运动支,后支为感觉支;环杓后肌神经来自前支和前支的分支——杓间肌支,支数多,长度短。组织学研究表明,前支内,环杓后肌神经纤维和其它神经纤维随机分布在一起,未形成一个独立的神经束。Thirty cases of the terminal portion of the recurrent laryngeal nerves were studied by the microsurgical techniques, the histological and the karnovsky-Roots methods in human beings. It was found that the recurrent laryngeal nerve terminated in two brancches, a posterior one, and an anterior one. The posterior ramus, a sensory one, joined the Galen's loop. The anterior branch, a motor one, innervated all the intrinsic muscles of the larynx. The nerves of the posterior cricoarytenoid muscle arose from the anterior branch and the interarytenoid ramus which was the one of the subdivisions of the anterior branch. The abduct fibers distributed randnmly within the fascicles of the anterior branch without forming a seperated fascicle befor leaving for the posterior cricoarytenoid muscle.

关 键 词：环杓后肌 喉返神经 显微镜 解剖学 

分 类 号：R322.85[医药卫生—人体解剖和组织胚胎学]