A.橈骨莖突、拇長伸肌腱、橈側腕長深肌腱
B.橈骨莖突、拇長展肌、
C.拇短深肌
D.橈骨莖突、拇長展肌腱、拇短伸肌腱
E.橈骨莖突、拇長展肌腱、拇短伸肌腱、示指伸肌腱
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A.骨骼輕巧,運動靈活
B.由64塊骨構成
C.排列簡單
D.肌肉較少
E.神經(jīng)分布簡單
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
A.成人脊髓頸1~4節(jié)段與同序數(shù)椎體相對應
B.頸5~8和胸1~4節(jié)段與同序數(shù)椎體上一個相對應
C.胸5~8節(jié)段與同序數(shù)椎體上兩個相對應
D.胸9~12節(jié)段與同序數(shù)椎體上三個相對應
E.腰1~5節(jié)段與第8~10胸椎體相對應
A.起自節(jié)段性動脈的脊支
B.腰段來自腰動脈
C.骶尾段來自骶外側動脈
D.隨脊神經(jīng)穿椎間孔入椎管分為前、后根動脈和脊膜支
E.腰5節(jié)段以下供血貧乏
A.脊髓前動脈
B.髓后動脈
C.根動脈
D.頸橫動脈
E.肋間后動脈和肋下動脈