Most chordomas are found at skull base , sacrum and cervical spine 大多数脊索瘤发生在颅底、颈椎及荐骨。
2.
The sacral plexus , called root - centre ( muladhara - cakra ) or secret place , being the root of all streams of vital energy ( nadis ) in the region of the rump - bone or sacrum 荐骨（血管，淋巴，神经等）丛，称为根部的中心（根轮）或者秘密的地方，是所有生命能量流（气脉）之根，在骶骨或者荐骨附近。
