脊椎曲線與脊椎正位 ​Neutral Spine Position

​頸椎正位與項直頭頂

齒輪模型 Brugger's Cogwheel Model

頸椎 Cervical Vertebrae

胸椎 Thoracic Vertebrae

腰椎 Lumbar Vertebrae

薦椎 Sacrum

尾椎 ​Coccyx