右冠状动脉阻塞引起的梗死区域为（） ["右心房、室","左心室侧壁及右心室","室间隔前2/3、心尖及右心室","左心室后壁、室间隔后1/3及右心室","室间隔后2/3及右心房、室"]
脊髓哪些节段是供血薄弱区?
一般心肌缺血多长时间内，梗死的心肌细胞内糖原消失（） ["5分钟","8分钟","10分钟","15分钟","30分钟"]
脑栓塞最常见的栓子来源于() ["A．肺静脉血栓","B．颈动脉粥样硬化斑块","C．心脏栓子","D．脂肪栓塞","E．寄生虫卵"]
颅内动脉瘤最好发的部位是（） ["A．Willis环动脉分叉处","B．颈内动脉","C．大脑中动脉","D．大脑前动脉","E．大脑后动脉"]
脊髓空洞症的诊断与鉴别诊断是什么?
