【多选题】【消耗次数：1】
有关脊髓的说法,正确的是().
①
A.脊髓全长粗细均匀
②
B.脊髓的内部结构是外周为白质,中央为灰质
③
C.从位置上看,十二个胸髓节依次与十二个胸椎体平对
④
D.脊髓下端平对第一腰椎体下缘
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相关题目
【单选题】
脊髓休克时脊髓反射减弱或消失，其原因是
①
损伤性剌激对脊髓的抑制作用
②
血压下降导致脊髓缺血
③
离断的脊髓突然失去了高级中枢的控制
④
失去了网状结构易化区的始动作用
⑤
脊髓中的反射中枢被破坏
【单选题】
关于脊髓的描述正确的是
①
中央管内的灰质叫中央灰质
②
中央管内有脑脊液向上通第4脑室
③
由灰质、白质、神经核和神经纤维组成
④
侧角内有网状结构
⑤
纤维在灰质内
【单选题】
下列关于脊髓的描述，正确的是（）
①
成人从枕骨打孔延伸到第2腰椎下缘
②
在胸段大部分有侧角
③
有31个节段
④
背侧有一条深的前正中裂
⑤
在新生儿下端平齐第1腰椎下缘
随机题目
【单选题】
9. The goal is to keep this land alive, to ______ animal population and keep it growing.
①
insist
②
keep
③
preserve
④
kill
【单选题】
12.To make him stay, the manager _______him a pay rise.
①
gave
②
declared
③
promised
④
assured
【单选题】
20. Sometimes we might see a person’s _____world from his behavior.
①
inside
②
inner
③
in
④
within
【单选题】
1.The authors purpose of writing
①
To show the authors grandparents were honest.
②
To explain what Integrity Triad realy embodies.
③
To demonstrate the authors grandparents motto
【单选题】
23.The customer expressed her ___for that broad hat.
①
disapproval
②
distaste
③
dissatisfaction
④
dismay
【单选题】
11.The United Nations managed to ______millions of people from hunger last year.
①
preserve
②
sell
③
save
④
. buy
【单选题】
3. He had to ______ his past actions when he retired, or he would be punished.
①
consider
②
account for
③
think
④
popular
【单选题】
19. The American people _____ a president every four years.
①
choose
②
elect
③
pick
④
select
【单选题】
22.___ him tomorrow?
①
Why not to call on
②
Why don’t call on
③
Why not calling on
④
Why not call on