后髓动脉的应用解剖学研究  

APPLIED ANATOMICAL STUDY OF THE POSTERIOR MEDULLARY ARTERY

作　　者：王琨[1] 李崇谦[1] 李云生[1] 陈仲欣[1] 贺能树[2] 

机构地区：[1]天津医科大学解剖学教研室 [2]天津医科大学总医院放射科

出　　处：《天津医科大学学报》1998年第3期212-214,共3页Journal of Tianjin Medical University

摘　　要：目的：为选择性脊髓血管造影和脊髓血管病显微手术提供解剖学资料。方法：在未离断的脊髓标本上解剖观察后髓动脉的起源、分布特点，以及后外侧动脉的位置与形态。结果：后髓动脉分布均匀，主要出现于第３～１１肋间动脉，其中以第９肋间动脉最多２９支。相邻两后髓动脉多相距１～２个节段动脉。在脊髓胸腰部可见后髓动脉呈典型的“发卡”样折曲。脊髓后外侧动脉由后髓动脉的升、降支吻合而成，它位于后根附着处的前方。结论：后髓动脉数量多，分布均匀，这些特点有助于脊髓血管造影时对后髓动脉的辨认和将其与前髓动脉相区别。Objective:To provide anatomical data for selective angiography of spinal cord and microsurgery in vertebrae canal Methods: The anatomical observation were made on intact spinal cord It is about the origin and distribution of the posterior medullary artery and the location and formation of the posterolateral spinal artery Results:The posterior medullary arteries were evenly distributed, occurring mostly from 3 to 11 intercostal arteries The most occurrence was 9th intercostal artery: The distance of adjacent vessels was usually 1 to 2 segmental arteries In lower thoracic and lumbar regions posterior medullary arteries present typical 'hair-pin' curve The descending and ascending branches of the adjacent vessels anastomoses each other to form the posterior lateral spinal cord artery They lie anterior to the attachment of the posterior nerve roots Conclusion: The posterior medullary arteries were more and distributed evenly The characters were helpful to recognize and distinguish from the anterior medullary arteries during angiography of the spinal cord Posterolateral spinal arteries were two continuous vessels lying anterior to the attachment of the posterior nerve roots

关 键 词：脊髓血管 后髓动脉 脊髓后外侧动脉 节段动脉 

分 类 号：R322.121[医药卫生—人体解剖和组织胚胎学]