SPINE SPINAL CORD INJURYSpine Anatomy and PhysiologyFUNCTION1 spinal bear load2 load buffer function3 spinal motionIntervertebral Discvertebrae nucleus pulposusfibrous ringcartilage plateCOMPOSITIONvertebrae Spinal Function1. Support body2. Act body3. Protect nervous system123Spinal Physiological CurveCervical lordosisThoracic kyphosisLumbar lordosisSacral kyphosisSpinal Three Column Theoryanterior columncenter columnposterior columnSpinal Function Unit（SFU) 每两个相邻的椎体和其间的椎间盘共同构成一个活动单位（包含三个骨连接：椎间盘
