1.下列關於脊椎骨( vertebrae)的敘述,何者正確?
A.寰椎(atlas)不具備椎體(vertebral body)與明顯之棘突(spinous process)
B.胸椎各節(T1~T12)全都具備橫肋關節面(transverse costal facet)
C.脊神經(spinal nerves)自橫突孔(transverse foramen)中穿出
D.腰椎(lumbar vertebrae)的下關節面(inferior articular facet)朝內(direct medially)