舌神经的临床应用解剖学研究

Appliedanatomicalstudyofthelingualnerve

为研究舌神经的临床应用解剖，对３２侧成人尸体头部标本的舌神经及其邻近结构进行了观测。舌神经全长平均为６９．７±７．９ｍｍ，以翼内肌为界将其分为３段，分别测量各段的长度及直径。平均颌下神经节的上下径与横径分别为２．７ｍｍ和２．９ｍｍ，根据它与舌神经的关系将其分为融合型（４６．９％）和游离型（５３．１％）。舌神经及其舌支与颌下腺导管存在两个交叉。

Thelingualnerveanditsadjacentstructureswereobservedandmeasuredon32adultcadavours.Itslengthwas69.7mmanditwasdivided,boundedbytheinternalpterygoidmuscle,in-tothreesegmentsandthelengthanddiameterofthemwererespectivelymeasured.Accordingtoitsrelationshipwiththelingualnerve,thesubmandibularganglioncanbeclassifiedintofusiontype(be-ing46.9%)andfreetype(being53.1%),anditssuperoinferiorandtranseversaldiameterswereseparatelymeasuredtobe2.7and2.9mm.Thelingualnerveanditslingualbrancheswerecloselyrelatedtosubmandibularductandthereweretwointersects.Therelationandclinicalsignificanceofthethirdsegmentoflingualnerveanditsneighborstructureswerestudied.