Both the brain and the spinal cord are protected by bone: the brain by the bones of the skull, and the spinal cord by the set of ring-shaped bones called vertebrae that make up the spine.
脑和脊髓都受骨骼保护：脑由颅骨保护，而脊髓则由脊柱保护(一组环状的椎骨共同构成了脊柱)。
2
Grin tire bottom, bottom white glaze, ring foot round, causing fetal bone Caine fine white bottom book "Great Qing Qianlong year, " the sixth Hang Kaishu paragraph two.
底露白胎，底施白釉，圈足圆润，胎骨坚致细白，底书“大清乾隆年制”六字二行楷书款。
3
Complicated pelvic fracture including sacrum bone fracture mostly displays pelvic posterior ring injuries.