[名词解释] 脑血管病

在鼻腔的血液供应中，鼻腭动脉为哪一动脉的分支() ["A．眼动脉","B．筛前动脉","C．上颌动脉","D．蝶腭动脉","E．眶下动脉"] 肌腱固定术 直立性低血压 MRI目前对以下哪些疾病具有重要诊断价值() ["A．脊髓与椎间盘病变","B．胃肠道疾病","C．脑脱髓鞘疾病","D．眶内肿瘤","E．脑干与幕下区病变"] 废用综合征 脑血管病