THE BRANCHES AND ANASTOMOSES OF THE CAVERNOUS SEGMENT OF THE INTERNAL CAROTID ARTERY
- VernacularTitle:颈内动脉海绵窦段分支和吻合的解剖
- Author:
Xiaohuan LEI
;
Fan LU
;
- Publication Type:Journal Article
- From:
Acta Anatomica Sinica
1955;0(03):-
- CountryChina
- Language:Chinese
-
Abstract:
50 cases of the brancnes and anastomoses of the cavernous segment of theinternal corotid artery were dissected on 3 adult and 22 infant cadavers under aspectacle type magnifying glass and a binocular dissection microscope.The principalresults are summarized as follows:1.From the proximal to the distal portion of the cavernous segment of theinternal carotid artery there were two curves,the first one curves forward and thesecond curve curves upward.Both curves divided the cavernous segment into threeportions,i.e.the posterior ascending,horizontal and anterior ascending portions.2.Normally within the cavernous segment of the internal carotid artery therewere two major branches which were the meningo-hypophyseal trunk and the arteryof the inferior cavernous sinus.In some cases there was also a capsular arterypresent.The meningo-hypophyseal trunk usually gave rise to three branches,viz,the tentorial artery,the dorsal meningeal artery and the inferior hypophyseal artery.According to the number of the primary branches within the cavernous segment ofthe internal carotid artery,we classify four types of ramification namely:of onebranch,of two branches,of three branches and of four branches.3.With regard to various branches,their origins,average external diameters,proper names,courses and distributions were presented in detail.4.The anastomoses of the cavernous segment of the internal carotid arterywithin various branches were described.The clinical significance of what has beenmentioned above was discussed.5.Parkinson's cavernous triangle,which is of practical significance to themicrosurgical operation,has been likewise measured.
