鉴别髓外肿瘤和髓内肿瘤最可靠的体征为() ["A.有无腱发射亢进","B.有无分离性感觉障碍","C.有无夏科关节","D.有无截瘫","E.有无大小便失禁"]
脊髓内脏运动神经元胞体位于() ["A.脊髓全长","B.骶髓2~4节","C.全部骶髓","D.胸髓和1~3腰节","E.全部腰髓"]
白质前连合含() ["A.轻触觉纤维","B.非意识性本体感觉纤维","C.躯体运动纤维","D.痛、温觉纤维","E.意识性本体感觉纤维"]
下列何种情况禁止做腰穿() ["A.严重高颅压,有脑疝危险的","B.腰椎间盘突出","C.高龄","D.发热","E.癫痫"]
髓外硬脊膜下肿瘤的主要病理类型有_______及_______。
椎管内肿瘤目前唯一有效的治疗手段是_______。