一脑梗塞的部位和原因:脑便塞与血管病变,血液成分、性质的改变,全身及脑局部的血液循环动态的变化等有关。但近年来已证明其病态及危险因子也与病变的不同部位有关。龟山氏把梗塞的部位分为皮层枝和穿通枝。皮层枝:从脑底部主动脉干延长,顺行性分枝,在脑表面形成丰富的吻合后,从皮质垂直到达白质。主要供应大脑皮质及 The location of a cerebral infarction and reasons: brain plug and vascular disease, blood composition, the nature of the changes in the body and brain blood circulation dynamic changes. But in recent years it has been proved that its pathological and risk factors are also related to different parts of the lesion. Kameyama’s infarction is divided into cortical branches and through the branches. Cortical branches: extending from the aortic trunk at the base of the brain, antegrade branches, forming a rich anastomosis on the brain surface, reaching white matter vertically from the cortex. The main supply of cerebral cortex and