豆纹动脉的显微解剖学研究  

A Micro anatomical Study on Lenticulostriate Arteries

作　　者：管勇[1] 吕少平[2] 李朗[1] 孙俊[1] 余发昌[1] 

机构地区：[1]昆明医学院人体解剖学教研室,昆明650031 [2]青岛医学院第二附属医院神经内科,青岛266042

出　　处：《四川解剖学杂志》2000年第2期73-79,共7页Sichuan Journal of Anatomy

基　　金：云南省教育厅应用基础研究奖金!资助课题

摘　　要：目的 :了解豆纹动脉的来源与分布。方法 :显微解剖结合厚片迭加观测 4 0侧人类大脑半球。结果 :4 0侧大脑半球共有豆纹动脉 2 60条 ,平均每侧半球 6.50± 3.31条 ,区分为近侧、中间和远侧三群。它们分别起自大脑中动脉根部、主干或其皮质支。分布于外囊、内囊和基底核的不同部位 ,但彼此有重叠。依其在前穿支的穿入部位 ,又可分为内侧、外侧和中间三组。结论 :豆纹动脉恒定地参与尾核头背外侧部的血供 ,而且从其起源、穿入部位和分布来看 ,传统的内侧群应分为近侧群和中间群 :前者参与内侧组血管并分布于苍白球和内囊膝 ;后者参与外侧组血管并分布于壳的前极、内囊前肢及尾核头背外侧部。由于豆纹动脉的发出部位是动脉瘤的好发部位 。For explore the origin and distribution of lenticulostriate artery(LSA) micro anatomical technique with thick section were used. 260 lenticulostriate arteries(LSA)were observed within 40 sides cerebral hemisphere, with an average number 6.5±3.31 in each hemisphere and were divided into proximal,middle and distal groups.LSA were derived from root,trunk or cortical branches of middle cerebral artery(MCA)and distributed to different regions of external capsule, internal capsule and basal nuclei with some overlapping. They perforated into brain tissue via anterior perforated substance, and traveled with a zigzag course. LSA could be divided into medial, lateral and intermediate groups, according to the perforating location of anterior perforated substance. According to the initial, perforating and distributing locations, the traditional medial group should be divided into proximal and intermediate groups. The former took part in the medial blood vessels and distributed to globus pallidus and genu of internal capsule, and the latter took part in the lateral ones and distributed to anterior pole of putamen, anterior limb of intnal capsule and dorsolateral portion of head of caudate. Because the origin place of LSA is a location where aneurysms frequently occurred, it may be the anatomical base of easily occurred infarction and hemorrhage .

关 键 词：豆纹动脉 基底核 显微解剖 

分 类 号：R329.4[医药卫生—人体解剖和组织胚胎学]