單項(xiàng)選擇題關(guān)于上肢結(jié)構(gòu)特征,不正確的描述是()。

A.骨骼輕巧,運(yùn)動(dòng)靈活
B.由64塊骨構(gòu)成
C.排列簡(jiǎn)單
D.肌肉較少
E.神經(jīng)分布簡(jiǎn)單


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1.單項(xiàng)選擇題Which is true on the subarachnoid space in the vertebral canal()。

A.lies between dura matter and arachnoid
B.up to subarachnoid space in the skull by the foramen magnum
C.down the the height of the fifth sacral vertebral
D.terminal cistern is formed by the space below the second sacral vertebral
E.the fluid in it can communicate with that in the center canal of spinal cord directly

2.單項(xiàng)選擇題對(duì)脊髓節(jié)段與椎體的對(duì)應(yīng)關(guān)系的描述,不正確的是()。

A.成人脊髓頸1~4節(jié)段與同序數(shù)椎體相對(duì)應(yīng)
B.頸5~8和胸1~4節(jié)段與同序數(shù)椎體上一個(gè)相對(duì)應(yīng)
C.胸5~8節(jié)段與同序數(shù)椎體上兩個(gè)相對(duì)應(yīng)
D.胸9~12節(jié)段與同序數(shù)椎體上三個(gè)相對(duì)應(yīng)
E.腰1~5節(jié)段與第8~10胸椎體相對(duì)應(yīng)

3.單項(xiàng)選擇題對(duì)根動(dòng)脈的描述,不正確的是()。

A.起自節(jié)段性動(dòng)脈的脊支
B.腰段來自腰動(dòng)脈
C.骶尾段來自骶外側(cè)動(dòng)脈
D.隨脊神經(jīng)穿椎間孔入椎管分為前、后根動(dòng)脈和脊膜支
E.腰5節(jié)段以下供血貧乏

4.單項(xiàng)選擇題分布于脊髓的動(dòng)脈不正確()。

A.脊髓前動(dòng)脈
B.髓后動(dòng)脈
C.根動(dòng)脈
D.頸橫動(dòng)脈
E.肋間后動(dòng)脈和肋下動(dòng)脈

5.單項(xiàng)選擇題對(duì)蛛網(wǎng)膜下隙的描述,不正確的是()。

A.位于蛛網(wǎng)膜外側(cè)
B.向上經(jīng)枕骨大孔與顱內(nèi)相應(yīng)腔隙相通
C.腔內(nèi)充滿腦脊液
D.向下達(dá)第2骶椎高度并形成終池
E.外側(cè)包裹脊神經(jīng)根形成脊神經(jīng)周圍隙