单项选择题
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
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