A.肱骨内上髁
B.肱骨外上髁
C.桡骨茎突
D.桡骨头
E.尺骨鹰嘴

A.肱骨头、肱骨小头、尺骨头中心各点的连线
B.肱骨头、桡骨头、尺骨茎突各点的连线
C.肱骨大结节、桡骨头、尺骨头各点的连线
D.喙突、桡骨头、尺骨头各点的连线
E.肱骨头、桡骨头、尺骨茎突各点的连线

A.尺动脉
B.桡动脉
C.正中神经
D.尺神经
E.拇收肌

A.尺侧为拇长深肌腱
B.近侧为尺骨茎突
C.近侧为桡骨茎突
D.桡侧为拇长展肌腱
E.桡侧为拇短深肌腱

A.桡骨茎突、拇长伸肌腱、桡侧腕长深肌腱
B.桡骨茎突、拇长展肌、
C.拇短深肌
D.桡骨茎突、拇长展肌腱、拇短伸肌腱
E.桡骨茎突、拇长展肌腱、拇短伸肌腱、示指伸肌腱

A.骨骼轻巧，运动灵活
B.由64块骨构成
C.排列简单
D.肌肉较少
E.神经分布简单

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.成人脊髓颈1～4节段与同序数椎体相对应
B.颈5～8和胸1～4节段与同序数椎体上一个相对应
C.胸5～8节段与同序数椎体上两个相对应
D.胸9～12节段与同序数椎体上三个相对应
E.腰1～5节段与第8～10胸椎体相对应

A.起自节段性动脉的脊支
B.腰段来自腰动脉
C.骶尾段来自骶外侧动脉
D.随脊神经穿椎间孔入椎管分为前、后根动脉和脊膜支
E.腰5节段以下供血贫乏

A.脊髓前动脉
B.髓后动脉
C.根动脉
D.颈横动脉
E.肋间后动脉和肋下动脉