A.橈骨莖突、拇長(zhǎng)伸肌腱、橈側(cè)腕長(zhǎng)深肌腱 B.橈骨莖突、拇長(zhǎng)展肌、 C.拇短深肌 D.橈骨莖突、拇長(zhǎng)展肌腱、拇短伸肌腱 E.橈骨莖突、拇長(zhǎng)展肌腱、拇短伸肌腱、示指伸肌腱
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
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