犬肌硬膜桥的扫描电子显微镜观察  

Scanning electron microscopy of myodural bridge in dog

作　　者：张志宏 张瑛[1] 孙静娴[2] 丁帅文 马国军[3] 迟彦艳[1] 于胜波[1] 郑楠[1] 隋鸿锦[1] ZHANG Zhi-hong;ZHANG Ying;SUN Jing-xian;DING Shuai-wen;MA Guo-jun;CHI Yan-yan;YU Sheng-bo;ZHENG Nan;SUI Hong-jin(Department of Anatomy,College of Basic Medicine,Dalian Medical University,Liaoning Dalian 116044,China;Colege of Pisheries and Lijfe Science,Dalian 0cean Universit,Liconung Dalian 116023,Chuna;Deparment of Engneering Mechanis,Dalan Uniersity of Tecnology,Liaoning Dalian 116024,China)

机构地区：[1]大连医科大学解剖学教研室,辽宁大连116044 [2]大连海洋大学生命科学院,辽宁大连116023 [3]大连理工大学力学院,辽宁大连116024

出　　处：《解剖学报》2020年第6期929-933,共5页Acta Anatomica Sinica

基　　金：国家自然科学基金(NSFC31871213);辽宁省科技厅博士启动基金(20180540148)。

摘　　要：目的扫描电子显微镜下观察犬寰枕间隙肌硬膜桥与硬脊膜及寰枕后膜的连接方式。方法取6份犬枕下寰枕间隙组织进行扫描电子显微镜观察,记录并拍摄犬头后小直肌肌硬膜桥纤维与寰枕后膜及硬脊膜纤维的连接关系,分析肌硬膜桥与寰枕后膜及硬脊膜的纤维连接形式。结果于寰枕间隙,肌硬膜桥纤维存在于头后小直肌与寰枕后膜,及寰枕后膜与硬脊膜之间。由犬头后小直肌腹侧发出的肌硬膜桥纤维平行排列,以锐角汇入寰枕后膜,并延续为寰枕后膜背侧浅层;寰枕后膜腹侧发出的与硬脊膜连接的肌硬膜桥纤维分成多束,束外有被膜包裹,内部纤维平行排列。寰枕后膜与硬脊膜之间的肌硬膜桥纤维最终以"编织"的方式汇入硬脊膜浅层,参与硬脊膜的构成。结论肌硬膜桥纤维与硬脊膜纤维以编织的方式相连接,提示肌硬膜桥纤维可以有效地传递拉力。Objective To observe the form of fibers connection of myodural bridge( MDB) between the rectus capitis posterior minor muscle( RCPmi) and the posterior atlanto-occipital membrane( PAOM),the PAOM and the spinal dura mater( SDM) in the atlanto-occipital space of dogs with scanning electron microscope( SEM). Methods The dense connection tissues( MDB) among the RCPmi,PAOM and SDM of six dogs were scanned with a SEM. The form of fibers connection between the RCPmi and PAOM, the PAOM and SDM in the atlanto-occipital space was observed,photographed,and documented. Results The MDB fibers connection existed between the RCPmi and the PAOM,and between the PAOM and the SDM. The MDB fibers between the RCPmi and the PAOM were parallelly arranged and inserted into the PAOM at an acute angle,and continued into the superficial layer of the back of PAOM. The MDB fibers between the PAOM and the SDM converged into several bundles. Each MDB bundle was covered by membrane. This membrane became continuous with the superficial membrane of SDM,meanwhile fibers of the membrane were interwoven with the surface fibers of SDM. Conclusion The interweaving fibers of the MDB with the SDM indicates that MDB fiber may withstand great tension.

关 键 词：肌硬膜桥 寰枕后膜 头后小直肌 硬脊膜 扫描电子显微术 犬 

分 类 号：R323.1[医药卫生—人体解剖和组织胚胎学]