back cervical vertebrae-zhèng jīng 1

back-cervical vertebrae

hòu bèi-jǐng zhuī 後背-頸椎

Fēn shū

Divide (divergent) pivot (hinge) 分樞

Ān shū

Peaceful (calm) pivot (hinge) 安樞

Gōng shū

Pivot work (hinge) 工樞

Huǒ shū

Pivot light (hinge) 火樞

Shí shū

Pivot time (hinge) 時樞