椎动脉变异１例李彦，李晓林，陈维佩第三军医大学重庆６３００３８椎动脉是脑部血供两条重要来源之一，它一般起于锁骨下动脉第一段，经上位６个颈椎横突孔穿出，经寰椎侧块后方的椎动脉沟转向上经枕骨大孔入颅腔。由于椎动脉要穿行横突孔这一特点，所以颈椎病，骨质增生... One case of vertebral artery variation LI Yan, LI Xiao-lin, CHEN Wei-pei Third Military Medical University, Chongqing 630038, China Vertebral artery is one of two important sources of blood supply to the brain. It usually starts from the first segment of subclavian artery, Piercing through the atlas lateral mass at the posterior vertebral artery ditch turned to the cranial cavity through the foramen magnum. Because of vertebral artery to transverse transverse hole this feature, so cervical spondylosis, bone hyperplasia ...